If the body is rotating with uniform angular velocity, then its torque is:

Sindh Mock 1
Physics
Circular Motion & Momentum
A) Zero
Show Explanation
B) 90
Show Explanation
C) 1
Show Explanation
D) -1
Show Explanation

If during circular motion, tangential velocity of a body becomes double, then centripetal force becomes:

Sindh Mock 1
Physics
Circular Motion & Momentum
A) Double
Show Explanation
B) One half
Show Explanation
C) Four times
Show Explanation
D) One fourth
Show Explanation

The process of natural decay of some heavy nuclides is because of the phenomenon:

Sindh Mock 1
Physics
Nuclear Physics
A) Emission Spectra
Show Explanation
B) Nuclear fusion
Show Explanation
C) Nuclear fission
Show Explanation
D) Radioactivity
Show Explanation

A mass has constant acceleration, what is true about the force applied on it?

Sindh Mock 1
Physics
Forces and Motion
A) Constantly increasing
Show Explanation
B) Constant but not zero
Show Explanation
C) Is directly proportional to square of displacement
Show Explanation
D) Is directly proportional to velocity
Show Explanation

A body starts sliding on a rough horizontal surface with a speed of 10 m/s. If the coefficient of friction is 0.2, find the distance traveled by the body before coming to rest. (g = 10m/s)

Sindh Mock 1
Physics
Forces and Motion
A) 15 m
Show Explanation
B) 25 m
Show Explanation
C) 35 m
Show Explanation
D) 40 m
Show Explanation

A particle carrying a charge of 3e, accelerates through a potential difference of 2V. The energy acquired by it is:

Sindh Mock 1
Physics
Electrostatics
Electron Volt
A) 1.6 X 10-19 J
Show Explanation
B) 9.6 X 10-19 J
Show Explanation
C) 9.6 X 10-18 J
Show Explanation
D) 1.6 X 10-18 J
Show Explanation

If the temperature is increased from 200K to 800K, then what would be the change in pressure at constant volume?

Sindh Mock 1
Physics
Heat and Thermodynamics
Kinetic Theory of Gases
A) Increases by factor 4
Show Explanation
B) Decreases by factor 4
Show Explanation
C) Increases by factor 2
Show Explanation
D) Decreases by factor 2
Show Explanation

The magnetic flux is a _______ quantity:

Sindh Mock 1
Physics
Magnetism and Electromagnetic Induction
Magnetic Flux and Flux Density
A) Scalar
Show Explanation
B) Vector
Show Explanation
C) Vector In some cases
Show Explanation
D) Scalar In some cases
Show Explanation

What is the relationship between Power, Current and voltage?

Sindh Mock 1
Physics
Current Electricity
Electrical Power and Power Dissipation in Resistors
A) P=V/I
Show Explanation
B) P=VI
Show Explanation
C) 2P=I+V
Show Explanation
D) All of them
Show Explanation

Two unequal resistances are connected parallel across a battery. Which of the following statements is true?

Sindh Mock 1
Physics
Current Electricity
Wire Wound Variable Resistors
A) Same current will flow through both resistances
Show Explanation
B) Current through smaller resistance is higher
Show Explanation
C) Current through larger resistance is higher
Show Explanation
D) Current can be higher in any resistance depending on emf of the cell
Show Explanation

The value of universal constant “R” is:

Sindh Mock 1
Physics
Heat and Thermodynamics
Kinetic Theory of Gases
A) 8.314 J mol-31K-3
Show Explanation
B) 1.38J mole-1 K-3
Show Explanation
C) 1.38J mole-1 K-1
Show Explanation
D) 8.314 J mole-1 K-1
Show Explanation

When a conductor of a cross-sectional area 5×10-6 m2 carries a current of 6 A, the drift velocity of the conduction electrons is 1.2 x 10-4 ms1-. What is the number density (number per unit volume) of the conduction electrons?

Sindh Mock 1
Physics
Current Electricity
Resistivity and its Dependence upon Temperature
A) 4×10-28 m-3
Show Explanation
B) 1.6×10-27 m-3
Show Explanation
C) 2.5×10-27 m-3
Show Explanation
D) 6.3×1028 m-3
Show Explanation

If we make the magnetic field stronger, the value of induced current is:

Sindh Mock 1
Physics
Magnetism and Electromagnetic Induction
Induced EMF and Induced Current
A) Decreased
Show Explanation
B) Increased
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C) Vanished
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D) Kept constant
Show Explanation

The half-life of C14 is about:

Sindh Mock 1
Physics
Nuclear Physics
Radioactivity
A) 1637 years
Show Explanation
B) 892 years
Show Explanation
C) 10 years
Show Explanation
D) 100 years
Show Explanation
E) 5730 years
Show Explanation

In half-wave rectification, the output DC voltage is obtained across the load for ______.

Sindh Mock 1
Physics
Electronics
Rectification
A) The positive half cycle of input AC
Show Explanation
B) The negative half cycle of input AC
Show Explanation
C) The positive and negative half cycles of input AC
Show Explanation
D) Either positive or negative half cycle of input
Show Explanation

Which of the following statements is not true regarding the Newton’s third law of motion?

Sindh Mock 1
Physics
Forces and Motion
A) To every action there is always an equal and opposite reaction
Show Explanation
B) Action and reaction act on the same body
Show Explanation
C) There is no cause-effect relation action and reaction
Show Explanation
D) Action and reaction forces are simultaneous forces
Show Explanation

A block with a mass of 0.1 kg is attached to a spring and placed on a horizontal frictionless table. The spring is stretched 20 cm when a force of 5 N is applied, the spring constant is:

Sindh Mock 1
Physics
Forces and Motion
A) 50 Nm-1
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B) 25 Nm-1
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C) 75 Nm-1
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D) 100 Nm-1
Show Explanation

Two capacitors C1 = 3 uF and C2 = 6 uF are in series across a 90 volts D.C. supply. The total capacitance is given by:

Sindh Mock 1
Physics
Electrostatics
A) 9 uF
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B) 2 uF
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C) 10 uF
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D) 90 uF
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A ball is thrown vertically upward with the velocity of 98 m/sec, how high does the ball rise?

Sindh Mock 1
Physics
Forces and Motion
A) 196 m
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B) 2 m
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C) 1/2 m
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D) 490 m
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A sphere of charge +Q is fixed in a position. A smaller sphere of +q is placed near the larger sphere and released from the rest. The small sphere will move away from the large sphere with?

Sindh Mock 1
Physics
Electrostatics
A) Decreasing velocity and decreasing acceleration
Show Explanation
B) Decreasing velocity and increasing acceleration
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C) Decreasing velocity and constant acceleration
Show Explanation
D) Increasing velocity and decreasing acceleration
Show Explanation

Which of the following is an instrument for monitoring radiations:

Sindh Mock 1
Physics
Nuclear Physics
Biological Effects and Uses of Radiation
A) GM tube
Show Explanation
B) Radar
Show Explanation
C) Wilson cloud chamber
Show Explanation
D) Both A and C
Show Explanation

Coal and petrol are stores of chemical energy when are burnt, chemical energy is converted into heat energy i.e chemical energy = heat energy + ______.

Sindh Mock 1
Physics
Work, Power & Energy
A) Electrical energy
Show Explanation
B) losses
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C) gains
Show Explanation
D) wind energy
Show Explanation

Full wave rectifier uses:

Sindh Mock 1
Physics
Electronics
Rectification
A) One diode
Show Explanation
B) Two diodes
Show Explanation
C) Three diodes
Show Explanation
D) Four diodes
Show Explanation

During adiabatic expansion internal energy decreases by 2J, then work done in this process is

Sindh Mock 1
Physics
Heat and Thermodynamics
First Law of Thermodynamics
A) 2J
Show Explanation
B) 1J
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C) -1J
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D) -2J
Show Explanation

A loop of radius 1 m is placed on a incline of 60 degree with the magnetic field of 100 T, corresponding flux will be ____.

Sindh Mock 1
Physics
Magnetism and Electromagnetic Induction
Magnetic Flux and Flux Density
A) 314 Wb
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B) 107 Wb
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C) 157 Wb
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D) 435 Wb
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The ratio of angular speed of moon around the Earth to its angular speed about its own axis is:

Sindh Mock 1
Physics
Circular Motion & Momentum
A) 2:1
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B) 1:6
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C) 1:30
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D) 1:1
Show Explanation

A metallic circular ring is suspended by a string and is kept in a vertical plane. When a magnet is approached towards the ring, then it will:

Sindh Mock 1
Physics
Magnetism and Electromagnetic Induction
Faradays and Lenz Law and Induced EMF
A) Remain stationary
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B) Get displaced away from the magnet
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C) Get displaced towards the magnet
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D) Nothing can be said
Show Explanation

According to the first law of thermodynamics, ΔU = Q + W, where ΔU Is the increase in internal energy of the system, Q is the heat transferred to the system and W is the external work done on the system.
Which of the following is NOT a correct expression?

Sindh Mock 1
Physics
Heat and Thermodynamics
First Law of Thermodynamics
A) At constant temperature: Q = -W
Show Explanation
B) When no work is done: ΔU = Q
Show Explanation
C) In gaseous system: ΔU = Q + P Δ V
Show Explanation
D) When work is done by the system: ΔU = Q + W
Show Explanation

The change in potential energy per unit charge between two points in an electric field is called:

Sindh Mock 1
Physics
Electrostatics
A) Potential difference
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B) Absolute potential
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C) Electric Intensity
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D) Permitivity
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The sum of all forms of molecular energies (Kinetic and Potential) of a substance is termed as?

Sindh Mock 1
Physics
Work, Power & Energy
A) Elastic energy
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B) Absolute energy
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C) Internal energy
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D) Heat energy
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What is the flux density at a point 3 cm from the long straight wire, when there is a current of 25 A in a wire: (u0= 4? x10-7)

Sindh Mock 1
Physics
Magnetism and Electromagnetic Induction
Magnetic Flux and Flux Density
A) 0.23×10-1 T
Show Explanation
B) 1.67x 10-4 T
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C) 2.99×10-6 T
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D) 3.63×10-8 T
Show Explanation

The ratio of wavelengths of the last line of Balmer series and the last line of Lyman series is:

Sindh Mock 1
Physics
Atomic Spectra
Spectrum of Hydrogen Atom
A) 0.5
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B) 2
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C) 1
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D) 4
Show Explanation

A special class of waves that does not need a material medium for their propagation are called

Sindh Mock 1
Physics
Wave Motion and Sound
A) Electric waves
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B) Magnetic waves
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C) Electromagnetic waves
Show Explanation
D) Sound waves
Show Explanation

Full wave rectifier uses:

Sindh Mock 1
Physics
Electronics
Rectification
A) One diode
Show Explanation
B) Two diodes
Show Explanation
C) Three diodes
Show Explanation
D) Four diodes
Show Explanation

A body having translatory motion possesses _____ and _____. In the same way a body having rotatory motion possesses _______ and _______.

Sindh Mock 1
Physics
Circular Motion & Momentum
A) Angular momentum… Angular velocity…. Linear momentum….Linear velocity
Show Explanation
B) Linear velocity…linear momentum…. Angular velocity…. angular momentum
Show Explanation
C) Linear momentum…. angular momentum…… linear velocity…. angular velocity
Show Explanation
D) Angular velocity…. angular momentum….. linear momentum….. linear velocity
Show Explanation

For the radiotherapy of a patient, it is required to double the absorbed dose in gray. What step must be taken?

Sindh Mock 1
Physics
Nuclear Physics
Biological Effects and Uses of Radiation
A) Energy must be quadrated
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B) Energy must be halved
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C) Energy must be raised four times
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D) Energy must be doubled
Show Explanation

A disc, a hoop, and a sphere of the same mass and radius are rolled down from a frictionless, inclined plane. Which has a greater speed on reaching the ground?

Sindh Mock 1
Physics
Circular Motion & Momentum
A) Disc
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B) Loop
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C) Sphere
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D) All have the same speed
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Coal and petrol are stores of chemical energy when are burnt, chemical energy is converted into heat energy i.e chemical energy = heat energy + ______.

Sindh Mock 1
Physics
Work, Power & Energy
A) Electrical energy
Show Explanation
B) losses
Show Explanation
C) gains
Show Explanation
D) wind energy
Show Explanation

During adiabatic expansion internal energy decreases by 2J, then work done in this process is

Sindh Mock 1
Physics
Heat and Thermodynamics
First Law of Thermodynamics
A) 2J
Show Explanation
B) 1J
Show Explanation
C) -1J
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D) -2J
Show Explanation

Object A has a charge of 15 mC, and object B has a charge of 10 mC. Which statement is true about the electric forces on the objects?

Sindh Mock 1
Physics
Electrostatics
A) FAB = -3 FBA
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B) FAB = – FBA
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C) 3 FAB = – FBA
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D) -3 FAB = 2 FBA
Show Explanation

Which of the following is the percentage of the original quantity of a radioactive material left after five half–lives approximately.

Sindh Mock 1
Physics
Nuclear Physics
Radioactivity
A) 3%
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B) 10%
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C) 6.25%
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D) 20%
Show Explanation

A cyclist is moving towards the right with an acceleration of 4m/sec2. At t=0, he has traveled 5m moving towards the right at 15 m/sec. What will be his position at t = 2 seconds?

Sindh Mock 1
Physics
Forces and Motion
A) 36
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B) 38
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C) 41
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D) 43
Show Explanation

Minimum frequency below which no electrons are emitted from the metal surface is called ______ frequency.

Sindh Mock 1
Physics
Dawn of Modern Physics
A) Minimum
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B) Angular
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C) Maximum
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D) Threshold
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A vector such as the velocity of a body undergoing uniform translational motion, which can be displaced parallel to itself and applied to any point is known as:

Sindh Mock 1
Physics
Scalars and Vectors
Basic Concepts of Vectors
A) Unit vector
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B) Free vector
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C) Null vector
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D) Position vector
Show Explanation

When photons are incident on a metal, electrons are emitted. The process is called:

Sindh Mock 1
Physics
Dawn of Modern Physics
A) Photoelectric effect
Show Explanation
B) Pair production
Show Explanation
C) X-ray production
Show Explanation
D) Gamma ray production
Show Explanation

Example(s) of spin motion is/are:

Sindh Mock 1
Physics
Circular Motion & Momentum
A) The daily rotation of the earth about its own axis
Show Explanation
B) Jumping of a paratrooper from an helicopter
Show Explanation
C) Flow of a viscous liquid
Show Explanation
D) Rotation of flywheel about its axle
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E) Both the daily rotation of the earth and flywheel about its own axis
Show Explanation

A body starts sliding on a rough horizontal surface with a speed of 10 m/s. If the coefficient of friction is 0.2, find the distance traveled by the body before coming to rest. (g = 10m/s)

Sindh Mock 1
Physics
Forces and Motion
A) 15 m
Show Explanation
B) 25 m
Show Explanation
C) 35 m
Show Explanation
D) 40 m
Show Explanation

Which of the following losses in a transformer is zero even at full load?

Sindh Mock 1
Physics
Magnetism and Electromagnetic Induction
Transformers
A) Eddy current loss
Show Explanation
B) Core loss
Show Explanation
C) Copper loss
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D) Friction loss
Show Explanation

If two objects of equal masses ‘m’ are moving towards each other with the same speeds ‘v’ then what will be the total final momentum after elastic head-on collision?

Sindh Mock 1
Physics
Forces and Motion
A) mv kg m/s
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B) – mv kg’s
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C) 2 mv kg’s
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D) 0 kg m/s
Show Explanation

A battery whose emf is 40 V has an internal resistance of 5 Ohms. If this battery is connected to a 15 Ohms resistor ‘R’, what will be the voltage drop across ‘R’:

Sindh Mock 1
Physics
Current Electricity
Electrical Power and Power Dissipation in Resistors
A) 10 V
Show Explanation
B) 30 V
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C) 40 V
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D) 50 V
Show Explanation

Which of the following statement shows that no work is done?

Sindh Mock 1
Physics
Work, Power & Energy
A) Pushing a car to start it moving
Show Explanation
B) Lifting the weights.
Show Explanation
C) The moon Orbiting the earth.
Show Explanation
D) Writing an essay on a page.
Show Explanation

In water pipes _________ is used to detect leakages:

Sindh Mock 1
Physics
Nuclear Physics
Biological Effects and Uses of Radiation
Radioactivity
A) Radioisotope
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B) Light
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C) Current
Show Explanation
D) Heat
Show Explanation

When an electron and its antiparticle positron come close enough to each other, they completely convert into radiation energy in the form of photons, this process is called:

Sindh Mock 1
Physics
Dawn of Modern Physics
A) Photoelectric current
Show Explanation
B) Pair production
Show Explanation
C) Annihilation of matter
Show Explanation
D) Compton effect
Show Explanation

Select the correct option:

He was killed _____ a robber _____ a hatchet.

Sindh Mock 1
English
Fill in the blank
A) From, with
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B) By, at
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C) Through, far
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D) By, with
Show Explanation

Find the error.

Sindh Mock 1
English
Identify errors in sentence
A) She showed us five different shades of blue paint.
Show Explanation
B) She was approached, but she declined the offer.
Show Explanation
C) There are seven floors in this building.
Show Explanation
D) This is the best birthday party I have ever had.
Show Explanation
E) When I go the museum, I wore comfortable shoes.
Show Explanation

Complete the sentences by choosing the most appropriate option, from the given lettered choices (A to E) below each.

He says he is a ______, but he can’t play the piano or any other instrument and he can’t sing.

Sindh Mock 1
English
Fill in the blank
A) Musician
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B) Magician
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C) Physician
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D) Dietician
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Identify errors in the sentences:

During the day, there is often two guards at the entrance.

Sindh Mock 1
English
Identify errors in sentence
A) During
Show Explanation
B) there is
Show Explanation
C) guards
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D) No error.
Show Explanation

Complete the sentences by choosing the most appropriate option, from the given lettered choices (A to D/E) below:

He would like ______ have a job in the same office as his brother.

Sindh Mock 1
English
Tenses and Sentence Structure
A) too
Show Explanation
B) to
Show Explanation
C) of to
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D) get
Show Explanation

Fill in with the appropriate Article: ____apple ___ day keeps ____doctor away.

Sindh Mock 1
English
Fill in the blank
A) the/a/a
Show Explanation
B) an/a/an
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C) an/the/the
Show Explanation
D) a/a/the
Show Explanation
E) an/a/the
Show Explanation

Bones of the skull are joined by:

Sindh Mock 1
Biology
Support and Movement
Types of Joints
A) Fixed joints
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B) Sliding joints
Show Explanation
C) Pivot joints
Show Explanation
D) Hinge joints
Show Explanation

Choose the lettered word or phrase that is most nearly opposite in meaning to the word in capital letters.

ASSERTION

Sindh Mock 1
English
Key Vocabulary
A) statement
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B) denial
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C) claim
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D) unrest
Show Explanation

Questions 9-10 are based on the following passage.

However, it must be recognized that science has its limitations. Its methods apply only to those things which can be observed, measured, and treated mathematically. It has nothing to do with values- save those of truth and accuracy. It has nothing to do with happiness, goodness, beauty, courage, adventure, justice, altruism, friendship, love of family, love of country. Yet all these values enter into a man’s conception of what is the good personal life within a good society. It is possible for honest and intelligent men to differ profoundly on the nature of these values and their respective degrees of importance. Hence the contrast between the modern world’s command of material things and its tragic failure to organize a harmonious world society.

It can be inferred from the passage that the author thinks:

Sindh Mock 1
English
Passage
A) science to be the necessary element of a good personal life
Show Explanation
B) science brings happiness, goodness, beauty, courage adventure,justice, altruism, friendship, love of family and love of country to a man’s life
Show Explanation
C) science has successfully brought a balance between the modern world’s command of material things and a harmonious world society
Show Explanation
D) a good personal life can be achieved by recognizing the nature of values and their degree of importance
Show Explanation

Identify the word or phrase that needs to be changed for the sentence to be correct:

Children depend on their parents for food and clothing.

Sindh Mock 1
English
Identify errors in sentence
A) Depend
Show Explanation
B) Their
Show Explanation
C) For
Show Explanation
D) And
Show Explanation
E) No error
Show Explanation

Complete the sentence by choosing the most appropriate option:

There _____ many students waiting to hear the results of the test.

Sindh Mock 1
English
Fill in the blank
A) has
Show Explanation
B) have
Show Explanation
C) was
Show Explanation
D) are
Show Explanation

Choose the lettered word or phrase that is most nearly opposite in meaning to the word in capital letters.

DEMONSTRATE:

Sindh Mock 1
English
Key Vocabulary
A) show
Show Explanation
B) display
Show Explanation
C) conceal
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D) Expose
Show Explanation

Complete the sentences by choosing the most appropriate option, from the given lettered choices (A to D) below each.

I was having a cup ___ tea when he knocked on the door.

Sindh Mock 1
English
Fill in the blank
A) off
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B) at
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C) an
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D) of
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Choose the word most similar in meaning to the capitalized one.

UNAMBIGUOUS:

Sindh Mock 1
English
Key Vocabulary
A) Exact
Show Explanation
B) Clear
Show Explanation
C) Interesting
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D) Sufficient
Show Explanation

Identify the word or phrase that needs to be changed for the sentence to be correct:

We are expecting to go abroad this summer.

Sindh Mock 1
English
Identify errors in sentence
A) Are
Show Explanation
B) Expecting
Show Explanation
C) To go
Show Explanation
D) This
Show Explanation
E) No error
Show Explanation

The word closest in meaning to bewilderment is:

Sindh Mock 1
English
Key Vocabulary
A) Surety
Show Explanation
B) Bedazzled
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C) Confident
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D) Epiphany
Show Explanation

Fill in with a suitable Verb: The teacher_____ completed this chapter.

Sindh Mock 1
English
Fill in the blank
A) Have
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B) Is
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C) Are
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D) Has
Show Explanation

Choose the correct spelling:

Sindh Mock 1
English
Key Vocabulary
A) Defnite
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B) Defanit
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C) Dafanite
Show Explanation
D) Definite
Show Explanation

Choose the correct sentence:

Sindh Mock 1
English
Tenses and Sentence Structure
A) I wish I have been a millionaire.
Show Explanation
B) I wish I am being a millionaire.
Show Explanation
C) I wish I were a millionaire.
Show Explanation
D) I wish I was a millionaire.
Show Explanation

Viral disease that is widely spread and caused by enveloped RNA virus is:

Sindh Mock 1
Biology
Bio-diversity | Variety of Life
A) HIV
Show Explanation
B) Hepatitis
Show Explanation
C) Measles
Show Explanation
D) Influenza
Show Explanation

The family tree shows the inheritance of the ability to taste a certain substance. The allele for the ability to taste this substance is dominant to the allele for the inability to taste it.

What percentage of children of Pasha and Hina would be ‘non – tasters’?

Sindh Mock 1
Biology
Variation and Genetics
Inherited Diseases
A) 25 %
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B) 50 %
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C) 75 %
Show Explanation
D) 100 %
Show Explanation

What is the correct order of arthropod groups, from those with most legs to those with fewest legs?

Sindh Mock 1
Biology
Kingdom Animalia
Phylums – porifera to chordata
A) arachnids … crustaceans … insects … myriapods
Show Explanation
B) crustaceans … myriapods … insects … arachnids
Show Explanation
C) insects … arachnids … myriapods … crustaceans
Show Explanation
D) myriapods … arachnids … crustaceans … insects
Show Explanation
E) myriapods … crustaceans … arachnids … insects
Show Explanation

Endocytosis which involves ingestion of solid material is called:

Sindh Mock 1
Biology
Cell Structure and Function
Plasma Membrane
A) Solidocytosis
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B) Phagocytosis
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C) Exocytosis
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D) Pinocytosis
Show Explanation

Which of the following factors affect enzyme activity?

Sindh Mock 1
Biology
A) Temperature
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B) pH
Show Explanation
C) Concentration of substrate
Show Explanation
D) Radiation
Show Explanation
E) All of these
Show Explanation

Paramagnetic elements contain:

Sindh Mock 1
Chemistry
d and f Block Elements
A) All paired electrons
Show Explanation
B) All unpaired electrons
Show Explanation
C) Few unpaired electrons.
Show Explanation
D) Unequal electrons and protons
Show Explanation

Label the following phenomenon

Sindh Mock 1
Biology
Cell Structure and Function
Plasma Membrane
A) Exocytosis
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B) Osmosis
Show Explanation
C) Diffusion
Show Explanation
D) Phagocytosis.
Show Explanation

Which of the following is NOT a difference that would allow one to distinguish between a prokaryotic and a eukaryotic cell?

Presence or absence of the nucleus
Presence or absence of the cell wall
Membrane bound versus no membrane bound organelles
Sindh Mock 1
Biology
Cell Structure and Function
Prokaryotic and Eukaryotic Cells
A) I only
Show Explanation
B) II only
Show Explanation
C) III only
Show Explanation
D) I and II only
Show Explanation

Lysosomes function in:

Sindh Mock 1
Biology
Cell Structure and Function
Cytoplasm and Organelles
A) Protein synthesis
Show Explanation
B) Processing
Show Explanation
C) Intracellular digestion
Show Explanation
D) Lipid synthesis
Show Explanation

In which type of cells, cell wall is not present?

Sindh Mock 1
Biology
Cell Structure and Function
Cell Wall
A) Plant cells
Show Explanation
B) Fungal cells
Show Explanation
C) Bacterial cells
Show Explanation
D) Liver cells
Show Explanation

What are the functions of the inter, motor and sensory neurons in a reflex response?

Sindh Mock 1
Biology
Coordination and Control
Steps Involved in Nervous Coordination
A) Option A
Show Explanation
B) Option B
Show Explanation
C) Option C
Show Explanation
D) Option D
Show Explanation

The average diameter of large viruses is approximately equal to

Sindh Mock 1
Biology
Bio-diversity | Variety of Life
A) 100 to 160 nm
Show Explanation
B) 100 to 200 nm
Show Explanation
C) 240 nm to 300 nm
Show Explanation
D) always below than 100 nm
Show Explanation

Which animals support Darwin’s view of inheritance of desirable variations?

Sindh Mock 1
Biology
Evolution
A) Giraffe
Show Explanation
B) Galapagos finches
Show Explanation
C) Snake
Show Explanation
D) All of the above
Show Explanation

Bacterial pilli help in:

Sindh Mock 1
Biology
Kingdom Prokaryote
Size and Structure of Bacteria
A) Locomotion
Show Explanation
B) Conjugation
Show Explanation
C) Phagocytosis
Show Explanation
D) Pinocytosis
Show Explanation

The end product of Glycolysis is:

Sindh Mock 1
Biology
Bioenergetics
Respiration Mechanism – Glycolysis to Electron Transport Chain
A) Glucose-6-phosphate
Show Explanation
B) Fructose-6-phosphate
Show Explanation
C) Pyruvate
Show Explanation
D) 3-Phosphoglycerate
Show Explanation

Which body function is controlled through a positive feedback mechanism?

Sindh Mock 1
Biology
Coordination and Control
Feedback Mechanism
A) Labor contractions
Show Explanation
B) Body temperature
Show Explanation
C) Insulin production
Show Explanation
D) Thyroxine release
Show Explanation

Some enzymes require the presence of a non protein molecule to behave catalytically. An enzyme devoid of this molecule is called a(n):

Sindh Mock 1
Biology
A) Holoenzyme
Show Explanation
B) Apoenzyme
Show Explanation
C) Coenzyme
Show Explanation
D) Zymoenzyme
Show Explanation

The following statements are about enzymes:

1. They are globular proteins

2. They can be inhibited by competitive inhibitors

3. They are formed in the smooth endoplasmic reticulum

4. There are only found attached to Plasma membranes in the cell

Which statements are correct for all enzymes?

Sindh Mock 1
Biology
A) 1 and 4
Show Explanation
B) 2 and 4
Show Explanation
C) 1 and 2
Show Explanation
D) 1,2,3 and 4
Show Explanation

Plant like character found in Euglena:

Sindh Mock 1
Biology
A) Pyrenoid
Show Explanation
B) Cilia
Show Explanation
C) Photoreceptor
Show Explanation
D) Flagellum
Show Explanation

Which diagram illustrates the distribution of sodium and potassium ions in a section of a non – myelinated axon which is at resting potential?

Sindh Mock 1
Biology
Coordination and Control
Steps Involved in Nervous Coordination
A) Option A
Show Explanation
B) Option B
Show Explanation
C) Option C
Show Explanation
D) Option D
Show Explanation

Which of the following are instant sources of energy in living organisms, like glucose? Their general formula is:

Sindh Mock 1
Biology
Biological Molecules
Carbohydrates
A) Cx(H2O)y
Show Explanation
B) C6H12O6
Show Explanation
C) Cx(H2O)x
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D) Cx(HO)y
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Which of the following basic structural level of proteins is indicated by an association of two alpha and two beta chains in the haemoglobin molecule?

Sindh Mock 1
Biology
Biological Molecules
Proteins
A) Primary structure
Show Explanation
B) Secondary structure
Show Explanation
C) Tertiary structure
Show Explanation
D) Quatenary Structure
Show Explanation

How many meninges cover the human brain?

Sindh Mock 1
Biology
Coordination and Control
Central Nervous System
A) 5
Show Explanation
B) 4
Show Explanation
C) 3
Show Explanation
D) 2
Show Explanation

Five steps of the lytic cycle of a T4 stage are given below:

The T4 phage uses its tails to stick to specific receptor
The cell’s metabolic machinery, directed by phage DNA, produces phage proteins and nucleotides from the cell’s degraded DNA.
The phage then directs production of an enzyme that digests the cell.
The empty capsid of the phage is left as a ghost outside the cell
The sheath of the tail contracts, thrusting a hollow core through the wall and membrane of the cell.
Which of the following is the correct sequence of the cycle?

Sindh Mock 1
Biology
Bio-diversity | Variety of Life
A) 3-5-4-2-1
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B) 2-4-5-1-3
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C) 5-1-4-2-3
Show Explanation
D) 1-5-4-2-3
Show Explanation

A hormone secreted from the duodenal mucosa that changes the inactive trypsinogen into trypsin is:

Sindh Mock 1
Biology
Nutrition
Digestion and Absorption
A) Peptone
Show Explanation
B) Ecdysome
Show Explanation
C) Enterokinase
Show Explanation
D) Amylase
Show Explanation

Whenever a muscle contracts, a sarcomere can be shortened up to _____ % of its total length.

Sindh Mock 1
Biology
Support and Movement
Ultrastructure & Mechanism of Skeletal Muscle Contraction
A) 15
Show Explanation
B) 25
Show Explanation
C) 35
Show Explanation
D) 45
Show Explanation

All of the following are the characteristics of the kingdom Protista except:

Sindh Mock 1
Biology
Kingdom Protista
Introduction and history of Protists
A) Members can be photosynthetic
Show Explanation
B) Members can be free living
Show Explanation
C) Some members move via flagella
Show Explanation
D) Some members are shaped like rods and termed bacilli
Show Explanation

The diagram shows the four types of human tooth.

Which teeth are used for cutting rather than grinding food?

Sindh Mock 1
Biology
Nutrition
Digestion and Absorption
A) 1 and 2
Show Explanation
B) 2 and 3
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C) 3 and 4
Show Explanation
D) 4 and 1
Show Explanation

Which one is NOT an involuntary function

Sindh Mock 1
Biology
Support and Movement
Types of Muscles
A) Breathing
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B) Pumping of blood
Show Explanation
C) Skeletal muscle movement
Show Explanation
D) Blinking of eyes
Show Explanation

Testes are structures that produce:

Sindh Mock 1
Biology
Reproduction
Reproduction in Males
A) Spores
Show Explanation
B) Sperms
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C) Seeds
Show Explanation
D) Ova
Show Explanation

Each enzyme has a dimple or groove at a specific side called:

Sindh Mock 1
Biology
A) Co-factor
Show Explanation
B) Active site
Show Explanation
C) Non active site
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D) Substrate
Show Explanation

The complete, mature and infection virus particle is known as:

Sindh Mock 1
Biology
Bio-diversity | Variety of Life
A) Venome
Show Explanation
B) Genome
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C) Virion
Show Explanation
D) Capsid
Show Explanation

Which one of the following is common to all neurons?

Sindh Mock 1
Biology
Coordination and Control
Coordination in Animals
A) A cell body which contains a nucleus
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B) A thick myelin sheath
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C) Presence of node of Ranvier
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D) Presence of Schwann cells
Show Explanation

What does the following picture show?

Sindh Mock 1
Biology
Coordination and Control
Coordination in Animals
A) Motor Neuron
Show Explanation
B) Sensory neuron
Show Explanation
C) Interneuron
Show Explanation
D) Nerve
Show Explanation

Artificial selection in breeding provides evidence for evolution known as:

Sindh Mock 1
Biology
Evolution
A) Domestication
Show Explanation
B) Demographic
Show Explanation
C) Gene pool
Show Explanation
D) Desire trait
Show Explanation

A continuously varying trait is encoded by alleles of two or more different genes located at different loci, all influencing the same trait in an additive way is known as ________.

Sindh Mock 1
Biology
Variation and Genetics
Polygenic Inheritance And Epistasis
A) Poly traits
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B) Polygenes
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C) Multiple alleles
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D) Different genes
Show Explanation

Enzymes are generally inactivated rapidly by exposure to UV high and also a, ẞ rays because it alters the:

Sindh Mock 1
Biology
A) Quantity of enzyme
Show Explanation
B) pH of enzyme
Show Explanation
C) Shape of enzymes
Show Explanation
D) Temperature of enzyme
Show Explanation

The gland known as the “gland of emergency” is the:

Sindh Mock 1
Biology
Coordination and Control
Endocrine System and its Hormones
A) Pituitary
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B) Adrenal
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C) Thyroid
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D) Parathyroid
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Carbon dioxide joins the photosynthetic pathway at:

Sindh Mock 1
Biology
Bioenergetics
Light Independent Mechanism of Photosynthesis
A) PSI
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B) PSII
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C) Light reaction
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D) Dark reaction
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Which factor decides what type of variation should be flourished and passed on to the next generations?

Sindh Mock 1
Biology
Evolution
A) Species
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B) Population
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C) Survival
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D) Environment
Show Explanation

The diagram shows some of the muscles and bones of the human arm.

Sindh Mock 1
Biology
Support and Movement
Ultrastructure & Mechanism of Skeletal Muscle Contraction
A) Option A
Show Explanation
B) Option B
Show Explanation
C) OPtion C
Show Explanation
D) Option D
Show Explanation

Which of the following are animals with pointed ends and a tube like digestive tract?

Sindh Mock 1
Biology
Kingdom Animalia
Phylums – porifera to chordata
A) Annelida
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B) Arthropoda
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C) Nematoda
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D) Mollusca
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In which model do proteins float in membrane-like iceberg in sea:

Sindh Mock 1
Biology
Cell Structure and Function
Plasma Membrane
A) Lock and key model.
Show Explanation
B) Induced fit model.
Show Explanation
C) Fluid mosaic model.
Show Explanation
D) Lotka volterra model.
Show Explanation

In the human body, blood circulating from the gut to the heart passes through the:

Sindh Mock 1
Biology
Transport
A) Aorta
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B) Kidneys
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C) Liver
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D) Lungs
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Which one of the following sets includes the bacterial diseases?

Sindh Mock 1
Biology
Kingdom Prokaryote
Importance and Control of bacteria
A) Cholera, typhoid, mumps
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B) Tetanus, tuberculosis, measles
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C) Malaria, mumps, poliomyelitis
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D) Diphtheria, leprosy, plague
Show Explanation

A child with AB blood group who was born to a mother of the genotype IAIA cannot have the father of the genotype:

Sindh Mock 1
Biology
Variation and Genetics
Blood Group System
A) IA IA
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B) IB IB
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C) IB IO
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D) IB IB and IB IO
Show Explanation

Formation of _____ will be greater with the faster breakdown of glucose and glycogen to compensate for energy requirements in anaerobic respiration

Sindh Mock 1
Biology
Bioenergetics
Anaerobic Respiration
A) Enzymes
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B) Hormones
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C) Lactic acid
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D) Fat
Show Explanation

Lipids store double the amount of energy as compared to carbohydrates because of:

Sindh Mock 1
Biology
Biological Molecules
Lipids
A) High proportion of oxygen
Show Explanation
B) High C-O ratio
Show Explanation
C) Low proportion of Carbon
Show Explanation
D) High proportion of C-H
Show Explanation

The unit of viscosity is:

Sindh Mock 1
Chemistry
States of Matter – Gases, Liquids and Solids
Viscocity and Surface Tension
A) Joule
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B) N/m2
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C) Dynes/cm
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D) Poise
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Which one of the following is exclusively marine phylum?

Sindh Mock 1
Biology
Kingdom Animalia
Phylums – porifera to chordata
A) Mollusca
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B) Echinodermata
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C) Annelida
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D) Arthropoda
Show Explanation

RuBP + O2 —Rubisco—> PGA + _______

Sindh Mock 1
Biology
Bioenergetics
Light Independent Mechanism of Photosynthesis
A) Phosphoglycerate
Show Explanation
B) Phosphoglycolate
Show Explanation
C) Glycerate
Show Explanation
D) Glycolate
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The inhibitor which closely resembles the substrate in its molecular structure and inhibits the enzyme activity by binding to the active site of the enzyme is called:

Sindh Mock 1
Biology
A) Feedback inhibitor
Show Explanation
B) Non-competitive inhibitor
Show Explanation
C) Allosteric modulator
Show Explanation
D) Competitive inhibitor
Show Explanation

Read the passage below to answer the question:

Haemophilia is a disorder in which blood fails to clot. Saad, a male haemophiliac, marries Sara, a normal woman and together they have four children, two boys (Ahmed and Ali) and two girls (Alia and Ayesha). None of the children display the symptoms of Haemophilia.

Ahmed, Ali, Ayesha, and Ali all marry normal individuals and have children. None of Ahmed’s or Ali’s children, male or female, display symptoms of haemophilia, but the sons of Alia and Ayesha display symptoms of haemophilia while the daughters of Alia and Ayesha do not.

Which of the following best explains the reason that Ahmed, Ali, Ayesha and Alia do not display symptoms of haemophilia, even though their father, Saad, is a haemophiliac.

Sindh Mock 1
Biology
Variation and Genetics
Inherited Diseases
A) Haemophilia is an X-linked disorder, and Saad can only pass on his Y chromosome
Show Explanation
B) Haemophilia is an X-linked disorder, and even though Alia and Ayesha receive a hemophiliac X-chromosome from Saad, Sara gave them a normal X-chromosome.
Show Explanation
C) Haemophilia is a Y -linked disorder, and therefore cannot be displayed in females
Show Explanation
D) Haemophilia is a Y-linked disorder ,and Ahmed and Ali must have received an X Chromosome from Saad
Show Explanation

Test cross is made to check the genotype of a trait. Which of the following crosses is a test cross?

Sindh Mock 1
Biology
Variation and Genetics
Mendelian Inheritance
A) Unknown x At
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B) Unknown x tt
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C) Unknown x AB
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D) Unknown x TT
Show Explanation

The law of dominance is illustrated in the garden pea by:

Sindh Mock 1
Biology
Variation and Genetics
Mendelian Inheritance
A) Homozygous tall x heterozygous tall
Show Explanation
B) Heterozygous tall x heterozygous tall
Show Explanation
C) Homozygous tall x homozygous tall
Show Explanation
D) Pure short x pure short
Show Explanation
E) Homozygous tall x pure short
Show Explanation

Menstrual cycle can be divided into

Sindh Mock 1
Biology
Reproduction
Reproduction in Females
A) Single cycle
Show Explanation
B) Two cycles
Show Explanation
C) Three cycles
Show Explanation
D) Four cycles
Show Explanation

The muscles attached to the bones are:

Sindh Mock 1
Biology
Support and Movement
Types of Muscles
A) Voluntary and smooth
Show Explanation
B) Involuntary and smooth
Show Explanation
C) Voluntary and striated
Show Explanation
D) Involuntary and striated
Show Explanation

Which of the following bones are present in the palm of the hand:

Sindh Mock 1
Biology
Support and Movement
Human Skeleton
A) Carpals
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B) Metacarpals
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C) Phalanges
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D) Tarsal
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The division of cocci in three planes form Sarcina, which is a cube of __________ Cocci?

Sindh Mock 1
Biology
Kingdom Prokaryote
Shape of Bacteria
A) 02
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B) 04
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C) 08
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D) 16
Show Explanation

Water acts as a universal solvent because of:

Sindh Mock 1
Biology
Biological Molecules
Water
A) Heat of vaporization
Show Explanation
B) Hydrogen bonding
Show Explanation
C) High polarity
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D) Cohesion and adhesion
Show Explanation

All of the following are sexually transmitted diseases except:

Sindh Mock 1
Biology
Reproduction
Sexually Transmitted Diseases
A) Syphilis
Show Explanation
B) Gonorrhea
Show Explanation
C) Alzheimer’s Disease
Show Explanation
D) Genital Herpes
Show Explanation

Glucose and fructose join together through _____ to form sucrose.

Sindh Mock 1
Biology
Biological Molecules
Carbohydrates
A) 1, 4 glycosidic linkage
Show Explanation
B) 1, 6 glycosidic linkage
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C) 1,2 glycosidic linkage
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D) 1,3 glycosidic linkage
Show Explanation

Photophosphorylation takes place in the _____ of the chloroplasts:

Sindh Mock 1
Biology
Bioenergetics
Respiration Mechanism – Glycolysis to Electron Transport Chain
A) Stroma
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B) Granum
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C) Inner membrane
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D) Outer membrane
Show Explanation

A cross between a black cat and a tan cat produces a tabby pattern (black and tan fur together). What percent of kittens would have tan fur if a tabby cat is crossed with a black cat?

Sindh Mock 1
Biology
Variation and Genetics
Mendelian Inheritance
A) 100%
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B) 50%
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C) 25%
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D) 0%
Show Explanation

______ are more common in human males than females.

Sindh Mock 1
Biology
Variation and Genetics
Inherited Diseases
A) X-linked dominant traits
Show Explanation
B) X-linked recessive traits
Show Explanation
C) Y-linked dominant traits
Show Explanation
D) Autosomal linked recessive traits
Show Explanation

They are inhibitors of key enzymes in the nervous system:

Sindh Mock 1
Biology
A) Calcium and Potassium
Show Explanation
B) Substrate and activators
Show Explanation
C) Hexokinase and glucose
Show Explanation
D) Magnesium and manganese
Show Explanation
E) Pesticides DDT and parathione
Show Explanation

Transport of three protons through the ATPase complex is required for the production of one ______.

Sindh Mock 1
Biology
Bioenergetics
A) Sugar molecule
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B) NADP molecule
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C) ATP molecule.
Show Explanation
D) NADPH’ molecule
Show Explanation

By which process is the water lost?

Sindh Mock 1
Biology
Gaseous Exchange
Gaseous Exchange in Plants
A) osmosis
Show Explanation
B) photosynthesis
Show Explanation
C) translocation
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D) transpiration
Show Explanation

The phase in which bicuspid and tricuspid valves open & semilunar valve close which produce 2nd heart sound (dub or dup). This the phase is known as:

Sindh Mock 1
Biology
Transport
A) Atrial diastole
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B) Ventricular diastole
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C) Ventricular systole
Show Explanation
D) Contraction of heart
Show Explanation

According to which phenomenon, “the properties of elements are the periodic function of their atomic number.”

Sindh Mock 1
Chemistry
Periodicity in Elements
The Modern Periodic Table
A) Mendeleev’s periodic law
Show Explanation
B) Newland’s law of octaves
Show Explanation
C) Doberenier’s triads
Show Explanation
D) Lothar Meyer’s classification
Show Explanation
E) Modern periodic law
Show Explanation

For the following exothermic reaction, a decrease in temperature will shift the equilibrium towards: 2NO(g) + O2 (g) -> 2NO2 (g)

Sindh Mock 1
Chemistry
Chemical Equilibrium
State of Chemical Equilibrium
A) Left
Show Explanation
B) The Point of Equilibrium
Show Explanation
C) Both Directions
Show Explanation
D) Right
Show Explanation

The type of isomerism existing in a compound of molecular formula C2H6O is:

Sindh Mock 1
Chemistry
Fundamental Principles of Organic Chemistry
Introduction to Fundamental Concepts of Chemistry
A) Functional group
Show Explanation
B) Position
Show Explanation
C) Chain
Show Explanation
D) Metamerism
Show Explanation

Which of the following statements is NOT true for the first law of thermodynamics?

Sindh Mock 1
Chemistry
Thermochemistry
Laws of Thermodynamics
A) Total energy of the system and surrounding is conserved
Show Explanation
B) Energy can neither be created nor destroyed
Show Explanation
C) It is the same as law of conservation of energy
Show Explanation
D) Total energy of the system is increasing
Show Explanation

The equation N2(g)+ 3H2(g)⇋ 2NH3(g)represents:

Sindh Mock 1
Chemistry
Chemical Equilibrium
Haber’s Process
A) Contact process
Show Explanation
B) Haber’s process
Show Explanation
C) Solvay process
Show Explanation
D) Avogadro’s Law
Show Explanation

Which type of reaction takes place when a carbonyl compound is treated with a mixture of NaCN and an acid?

Sindh Mock 2
Chemistry
Aldehydes and Ketones
Reactivity and Reactions of Carbonyl Group
A) Electrophilic addition reaction
Show Explanation
B) Substitution reaction
Show Explanation
C) Nucleophilic addition reaction
Show Explanation
D) Displacement reaction
Show Explanation

Ethanol, when reacted with PCI5 , gave A, POCl3, and HCI. A reacts with AgNO2 to form B and AgCl. A and B are respectively:

Sindh Mock 1
Chemistry
Alcohol, Phenols, and Ethers
A) C2H5Cl and C2H5OC2H5
Show Explanation
B) C2H6 and C2H5OC2H5
Show Explanation
C) C2H5Cl and C2H5NO2
Show Explanation
D) C2H6 and C2H5NO2
Show Explanation

Which of the following catalyst is used in the Friedel craft reaction?

Sindh Mock 1
Chemistry
Alkyl Halides and Amines
Reactivity and Reactions of Alkyl Halides
A) ZnCl2
Show Explanation
B) KMnO4
Show Explanation
C) AlCl3
Show Explanation
D) V2O5
Show Explanation

2M + X2 -> 2MX

If M is metal, it is more likely to be:

Sindh Mock 1
Chemistry
s and p Block Elements
A) Alkaline earth metal
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B) Alkali Metal
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C) Outer transition metal
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D) Inner transition metal
Show Explanation

Ionic, covalent and co-ordinate covalent bonds are simultaneously present in the molecular geometry of:

Sindh Mock 1
Chemistry
Chemical Bonding
Covalent Bond
Co-ordinate or dative covalent bond
Electrovalent or Ionic Bond
A) Ammonia
Show Explanation
B) Ammonium hydroxide
Show Explanation
C) Hydrochloric acid
Show Explanation
D) Water
Show Explanation

Cl + e —-> Cl-

ΔH = -348kJ/mol

The value -348KJ/mol in this case will be:

Sindh Mock 1
Chemistry
Thermochemistry
Standard States and Enthalpy Changes
A) Ionization energy
Show Explanation
B) Electronegativity
Show Explanation
C) Electron affinity
Show Explanation
D) Entropy
Show Explanation

In which of the following nitrogen compounds, does N has the highest oxidation state?

Sindh Mock 1
Chemistry
Electrochemistry
Oxidation Number or State
A) NH2OH
Show Explanation
B) N2H4
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C) HNO3
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D) NH3
Show Explanation

Ketones can be made by oxidation of:

Sindh Mock 1
Chemistry
Aldehydes and Ketones
Preparation of Aldehydes And Ketones
A) Aldehydes
Show Explanation
B) Primary Alcohols
Show Explanation
C) Secondary Alcohols
Show Explanation
D) Tertiary Alcohols
Show Explanation

The number of bonds in nitrogen molecules are:

Sindh Mock 1
Chemistry
Chemical Bonding
Energetics of Bond Formation
A) One sigma and one pi
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B) One sigma and two pi
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C) Three sigma only
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D) Two sigma and one pi
Show Explanation

The enthalpy change accompanying the gain of an electron by a neutral gaseous atom to form a negative ion is called:

Sindh Mock 1
Chemistry
Thermochemistry
Enthalpies of Reactions and its Types
A) Ionization potential
Show Explanation
B) Electronegativity
Show Explanation
C) Electron affinity
Show Explanation
D) Lattice energy
Show Explanation

Identify the type of isomerism:

Sindh Mock 1
Chemistry
Fundamental Principles of Organic Chemistry
A) Chain Isomerism
Show Explanation
B) Position Isomerism
Show Explanation
C) Functional group isomerism
Show Explanation
D) Metamerism
Show Explanation

NH3 (amine) is an example of:

Sindh Mock 1
Chemistry
Alkyl Halides and Amines
Introduction to Alkyl Halides and Amines
A) Negative ligand
Show Explanation
B) Anionic ligand
Show Explanation
C) Neutral ligand
Show Explanation
D) Organic ligand
Show Explanation

Artificial selection in breeding provides evidence for evolution known as:

Sindh Mock 1
Biology
Evolution
A) Domestication
Show Explanation
B) Deme
Show Explanation
C) Gene pool
Show Explanation
D) Desire trait
Show Explanation

Nitrogen and phosphorus have 3 of their valence electrons unpaired because of:

Sindh Mock 1
Chemistry
Atomic Structure
Sub Atomic Particles and Their Discoveries
A) Auf bau principle
Show Explanation
B) Heisenberg’s principle
Show Explanation
C) Hund’s rule
Show Explanation
D) Planck’s statement
Show Explanation

A diabetic person’s exhaled breath contains propanone. A student tries to test the diabetes by asking the person to bubble the reagent with his exhaled breath. Which of the following reagents would give a positive result?

Sindh Mock 1
Chemistry
Aldehydes and Ketones
Reactivity and Reactions of Carbonyl Group
A) Aqueous Bromine
Show Explanation
B) Fehling’s reagent
Show Explanation
C) Tollen’s reagent
Show Explanation
D) Alkaline aqueous iodine
Show Explanation

Ethanol, when reacted with PCI5 , gave A, POCl3, and HCI. A reacts with AgNO2 to form B and AgCl. A and B are respectively:

Sindh Mock 1
Chemistry
Alcohol, Phenols, and Ethers
A) C2H5Cl and C2H5OC2H5
Show Explanation
B) C2H6 and C2H5OC2H5
Show Explanation
C) C2H5Cl and C2H5NO2
Show Explanation
D) C2H6 and C2H5NO2
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The mass of an electron is:

Sindh Mock 1
Chemistry
Atomic Structure
Sub Atomic Particles and Their Discoveries
A) 1.008 amu
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B) 1.009 amu
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C) 0.000550 amu
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D) 0.5500 amu
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An ionic compound A+ B- is most likely to be formed when:

Sindh Mock 1
Chemistry
Chemical Bonding
Ionization Energy
A) The ionization energy of A is high and the electron affinity of B is low.
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B) The ionization energy of A is low and the electron affinity of B is high.
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C) The ionization energy of A and the electron affinity of B is high.
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D) The ionization energy of A and the electron affinity of B is low.
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Secondary alcohol is the product of reduction of which carbonyl compound?

Sindh Mock 1
Chemistry
Aldehydes and Ketones
Reactivity and Reactions of Carbonyl Group
A) Option A
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B) Option B
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C) Option C
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D) Option D
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The formula of “rock salt” is:

Sindh Mock 1
Chemistry
Environmental Chemistry
Chemistry of Troposphere and Stratosphere
A) NaOH
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B) NaHCO3
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C) Na2CO3
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D) CuSO4
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E) NaCl
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In which pair one has all Unpaired d orbitals while other have all paired d orbitals?

Sindh Mock 1
Chemistry
d and f Block Elements
A) Cu and Zn
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B) Cr and Fe
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C) Cr and Zn
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D) Mn and Co
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Reaction mechanism of alkanes with halogens is known as;

Sindh Mock 1
Chemistry
Alkyl Halides and Amines
Introduction to Alkyl Halides and Amines
A) Propagation
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B) Free radical substitution
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C) Addition
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D) Elimination
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How many atmospheres correspond to 1050 torr?

Sindh Mock 1
Chemistry
States of Matter – Gases, Liquids and Solids
Daltons Law of Partial Pressures
A) 1.050
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B) 10.38
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C) 1.380
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D) 2.760
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Dehydration of ethanol at 100 oC in the presence of concentrated H2SO4 gives:

Sindh Mock 1
Chemistry
Alcohol, Phenols, and Ethers
A) Ethene
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B) Ethane
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C) Ethyne
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D) Ether
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The false statement regarding saline hydrides is:

Sindh Mock 1
Chemistry
A) They conduct electricity in molten state
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B) They are used as reducing agents
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C) They give H2 from H2O
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D) They are covalent in nature
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