Sindh DUHS MDCAT Past Papers 2023

Sindh JSMU MDCAT 2023

1 / 202

Read the two statements carefully then choose the best from the options to follow:
Statement 1- It was raining cats and dogs.
Statement 2-The football match was cancelled

Sindh MDCAT 2023
Logical Reasoning
Elimination Tool:

A) Statement (i) is the cause and statement (ii) is its effect.

B) Statement (ii) is the cause and statement (i) is its effect.

C) Both the statements (i) and (ii) are independent.

D) Both the statements (i) and (ii) are effects of independent causes.

2 / 202

Essa Is younger than Moosa.
X=Twice Essa’s age
Y=Moosa’s age
Which of the following is true about this information?

Sindh MDCAT 2023
Logical Reasoning
Elimination Tool:

A) X >Y

B) Y > X

C) X = Y

D) The relationship cannot be determined

3 / 202

Sara is five ranks below the top student Faiq in a class of 50 students. What is Sara’s rank from the bottom of the class?

Sindh MDCAT 2023
Logical Reasoning
Elimination Tool:

A) 5th

B) 15th

C) 45th

D) 55th

4 / 202

if blue is called green’, green is called ‘white’, white is called ‘red’,and red is called ‘yellow’, what is the color of milk?

Sindh MDCAT 2023
Logical Reasoning
Elimination Tool:

A) White

B) Green

C) Yellow

D) Red

5 / 202

Read the statement and following courses of action carefully. Then select the most appropriateoptions.
Statement English language skills of students in XYZ school are below the town average.
Course of Action:
ⅰAll English language teachers in XYZ school, should be replaced with good ones.
ⅱEnglish language teachers in XYZ school, should be provided a training course

Sindh MDCAT 2023
Logical Reasoning
Elimination Tool:

A) The most appropriate approach is (i)

B) The most appropriate approach is (ii)

C) Both (i) and )ii) are appropriate approaches

D) None of (i) or (ii) is an appropriate approach

6 / 202

Look carefully at the symbols to find the pattern. Select the pattern from the options given below:

Sindh MDCAT 2023
Logical Reasoning
Elimination Tool:

A) A

B) B

C) C

D) D

7 / 202

In the projectile motion, the acceleration in the horizontal direction:

Sindh MDCAT 2023
Physics
Elimination Tool:

A) Remains same

B) Varies with time

C) Is zero

D) Is positive

8 / 202

A wheel of bike rotates from rest and achieves 6.28 radian/sec in 2 seconds. What will be its angular acceleration?

Sindh MDCAT 2023
Physics
Elimination Tool:

A) 1 rad/sec2

B) 1.5 rad/sec2

C) 3.14 rad/sec2

D) 6.28 rad/sec2

9 / 202

What is the dot product of magnetic induction and unit area?

Sindh MDCAT 2023
Physics
Elimination Tool:

A) Magnetic flux

B) Magnetic induction

C) Magnetic field

D) Magnetic pole

10 / 202

1 kilowatt-hour (kWh) equals to:

Sindh MDCAT 2023
Physics
Elimination Tool:

A) 3.6 J

B) 3.6 kJ

C) 3.6 MJ

D) 3.6 GJ

11 / 202

Due to sudden rain, which of the following is true for the car moving on the road?

Sindh MDCAT 2023
Physics
Elimination Tool:

A) Force of engine decreases

B) Balance will not be maintained

C) Direction of motion will be effected

D) Linear momentum increases

12 / 202

Longitudinal waves exhibit:

Sindh MDCAT 2023
Physics
Elimination Tool:

A) Polarization

B) Particle nature

C) Property of energy transmission in space

D) Phenomena of superposition of waves

13 / 202

Which law has a graph similar to the graph of isothermal process?

Sindh MDCAT 2023
Physics
Elimination Tool:

A) Boyle's law

B) Charle's law

C) Avogadro's law

D) Law of heat exchange

14 / 202

A ball is thrown horizontally with 19.6 m/s. After 2 seconds it’s horizontal velocity component will be:

Sindh MDCAT 2023
Physics
Elimination Tool:

A) 4.9 m/s

B) 9.8 m/s

C) 19.6 m/s

D) 39.2 m/s

15 / 202

A semi-conductor diode can be used as:

Sindh MDCAT 2023
Physics
Elimination Tool:

A) A full wave rectifier

B) An amplifier

C) A transmitter

D) A half wave rectifier

16 / 202

The property of the system that does not change during adiabatic change is:

Sindh MDCAT 2023
Physics
Elimination Tool:

A) Temperature

B) Volume

C) Pressure

D) Amount of heat

17 / 202

Which law explains the relation between amount of charges and force between them?

Sindh MDCAT 2023
Physics
Elimination Tool:

A) Ohm's law

B) Lenz's law

C) Coulomb's law

D) Ampere's law

18 / 202

If the wavelength of a light is 3×10-7, then what is it its frequency?

Sindh MDCAT 2023
Physics
Elimination Tool:

A) 1×1013 Hz

B) 1×1014Hz

C) 1×1015Hz

D) 1×1016Hz

19 / 202

In standing waves, the distance between two consecutive nodes or anti- nodes is:

Sindh MDCAT 2023
Physics
Elimination Tool:

A) 2λ

B) λ/2

C) λ/4

D) λ

20 / 202

The change in electric potential with respect to distance equals to:

Sindh MDCAT 2023
Physics
Elimination Tool:

A) Potential gradient

B) Amount of the charge

C) Potential difference

D) Surface charge density

21 / 202

Induced FMF in A.C. generator can be increased by:

Sindh MDCAT 2023
Physics
Elimination Tool:

A) Decreasing area of coil

B) Decreasing magnetic field

C) Increasing area of coil

D) Slowing down speed of coil

22 / 202

Which of the following are the application of Doppler’s effect?

Sindh MDCAT 2023
Physics
Elimination Tool:

A) Hologram technology

B) Measuring the speed of automobile

C) Determining speed of light in mediums

D) Sending radar signals

23 / 202

The process in which no external work is performed is called:

Sindh MDCAT 2023
Physics
Elimination Tool:

A) Isobaric

B) Isochoric

C) Isothermal

D) Adiabatic

24 / 202

In vibratory motion the maximum displacement of the body on either side of its equilibrium position is called:

Sindh MDCAT 2023
Physics
Elimination Tool:

A) Distance

B) Displacement

C) Amplitude

D) Frequency

25 / 202

Half-life of radon gas is:

Sindh MDCAT 2023
Physics
Elimination Tool:

A) 3.8 minutes

B) 3.8 days

C) 3.8 months

D) 38 years

26 / 202

Radiations are dangerous to living organism because they damage the cell by:

Sindh MDCAT 2023
Physics
Elimination Tool:

A) By producing ions in the cells

B) By increasing the temperature of cells

C) By decreasing the number of cells

D) By destroying the cells

27 / 202

A transformer is used to:

Sindh MDCAT 2023
Physics
Elimination Tool:

A) Transform alternating current and voltage

B) Convert alternating current into direct current

C) Convert mechanical energy into electrical energy

D) Convert direct current into alternating current

28 / 202

What does the electric field around a charge represent?

Sindh MDCAT 2023
Physics
Elimination Tool:

A) Size of the charge

B) Effective area for electrostatic force

C) Path followed by the charge

D) Speed of the charge

29 / 202

The energy of light is determined by its:

Sindh MDCAT 2023
Physics
Elimination Tool:

A) Frequency

B) Intensity

C) Amplitude

D) Speed

30 / 202

If the fundamental frequency of vibration of a string fixed both ends is 50Hz, the fourth harmonic will be:

Sindh MDCAT 2023
Physics
Elimination Tool:

A) 200Hz

B) 150Hz

C) 12.5Hz

D) 250Hz

31 / 202

What is the time rate of change of linear momentum?

Sindh MDCAT 2023
Physics
Elimination Tool:

A) Acceleration

B) Force

C) Velocity

D) Work

32 / 202

A body of mass 4 kg is moving a circle of radius 2m. If the body moves round a complete circle, what is the work done by the body?

Sindh MDCAT 2023
Physics
Elimination Tool:

A) 8J

B) Zero

C) 16J

D) 6J

33 / 202

The speed of sound at 0°C in air is 332 m/s What will be the speed of sound at 50°C?

Sindh MDCAT 2023
Physics
Elimination Tool:

A) 300 m/s

B) 332 m/s

C) 362 m/s

D) 382 m/s

34 / 202

What does the magnetic flux measure?

Sindh MDCAT 2023
Physics
Elimination Tool:

A) Area surrounded by a magnet

B) Strength of the magnetic field

C) Rate of change of magnetic force

D) The number of magnetic lines of force

35 / 202

Which of the following defines the change in magnetic flux unit area?

Sindh MDCAT 2023
Physics
Elimination Tool:

A) Magnetic field

B) Magnetic force

C) Magnetic dipole

D) Magnetic flux density

36 / 202

1 radian is equals to:

Sindh MDCAT 2023
Physics
Elimination Tool:

A) 0.573°

B) 5.73°

C) 57.3°

D) 573°

37 / 202

Which of the following results in the centripetal acceleration is produced in a body?

Sindh MDCAT 2023
Physics
Elimination Tool:

A) Change in magnitude of velocity

B) change in mass

C) Change in magnitude of force

D) Change in direction of velocity

38 / 202

Soft cylindrical electrical conducting wire has resistance R. It is streat so that its length is doubled but its radius stays constant. What would be the new resistance?

Sindh MDCAT 2023
Physics
Elimination Tool:

A) R/2

B) R

C) 4R

D) 2R

39 / 202

The amount of energy required in moving an electron of charge (e) by the application of 2 volt potential difference equal to:

Sindh MDCAT 2023
Physics
Elimination Tool:

A) 1 keV

B) 1 MeV

C) 1 GeV

D) 1 eV

40 / 202

If 1 transformer has 500 turn on primary coil and 250 turns on secondary coil, then:

Sindh MDCAT 2023
Physics
Elimination Tool:

A) Output voltage is half of input voltage

B) Output and input voltages are equal

C) Output voltage is double of input voltage

D) Output voltage is zero

41 / 202

What will be the value of acceleration, if a body of mass 0.5 kg is acted upon by force of 10 N?

Sindh MDCAT 2023
Physics
Elimination Tool:

A) 40 m/s2

B) 5 m/s2

C) 10 m/s2

D) 20 m/s2

42 / 202

A force 2F acting on a particle of mass 10 kg produces an acceleration of 30 m/s2. A force 5F acting on a particle of mass M produces and acceleration are 25 m/s2. What is the mass M?

Sindh MDCAT 2023
Physics
Elimination Tool:

A) 30 kg

B) 21 kg

C) 4.8 kg

D) 3.3 kg

43 / 202

The main function of a transformer is to convert:

Sindh MDCAT 2023
Physics
Elimination Tool:

A) One direct voltage to another direct voltage of different magnitude

B) One alternating voltage to another alternating voltage of different magnitude

C) High value alternating voltage to a low value direct voltage

D) A low value alternating voltage to a high value direct voltage

44 / 202

The ratio between linear velocity and radius equals to:

Sindh MDCAT 2023
Physics
Elimination Tool:

A) Angular displacement

B) Angular velocity

C) Angular acceleration

D) Angular momentum

45 / 202

The product of frequency and wavelength of a wave equals to:

Sindh MDCAT 2023
Physics
Elimination Tool:

A) Displacement of the wave

B) Amplitude of the wave

C) Speed of the wave

D) Time period of the wave

46 / 202

In beta positive decay, the nuclear number is:

Sindh MDCAT 2023
Physics
Elimination Tool:

A) Conserved

B) Not conserved

C) Unstable

D) Stable

47 / 202

Two bodies of masses 10 kg and 40 kg are dropped from the same height at the same time. Value of which of the following remains the same during the motion of the two bodies?

Sindh MDCAT 2023
Physics
Elimination Tool:

A) Acceleration

B) kinetic energy

C) Potential energy

D) Power

48 / 202

Which of the following corresponds to the momentum of a photon?

Sindh MDCAT 2023
Physics
Elimination Tool:

A) hλ

B) h/λ

C) λ/h

D) h2/λ2

49 / 202

1 N/C equals to:

Sindh MDCAT 2023
Physics
Elimination Tool:

A) 1 V/m

B) 1 J/C

C) 1 C/m2

D) 1 1/sec

50 / 202

Two capacitors 6μf and 12μf are in series connected across a 200 volts D.C. supply, Calculate the charges on each capacitor, respectively.

Sindh MDCAT 2023
Physics
Elimination Tool:

A) 8×10-4 C, 8×10-4 C

B) 8μC, 8μC

C) 8×104C, 16×104C

D) 800C, 800C

51 / 202

An atom makes a transition from a state of energy E2 to one of lower energy E1. Which of the following gives the wavelength of the radiation emitted, in terms of the Planck’s constant h and the speed of light e?

Sindh MDCAT 2023
Physics
Elimination Tool:

A) E2-E1/hc

B) hc/E2-he/E1

C) hc/E2-E1

D) c/h(E2-E1)

52 / 202

Which statement is the best for electric flux of a point charge?

Sindh MDCAT 2023
Physics
Elimination Tool:

A) Independent of charge

B) Independent of medium

C) Independent of shape of surface in which charge is enclosed

D) Independent position of charge in shape

53 / 202

Which of the following expression is constant for a freely falling body?

Sindh MDCAT 2023
Physics
Elimination Tool:

A) mgh+ mv2

B) mgh – mv2

C) mgh + ½ mv2

D) mgh -1/2mv2

54 / 202

On which principle does the transformer work?

Sindh MDCAT 2023
Physics
Elimination Tool:

A) Self induction

B) Mutual induction

C) Motional EMF

D) Magnetic torque

55 / 202

Which of the following may lead to the death by the age of three years?

Sindh MDCAT 2023
Biology
Elimination Tool:

A) Baucherdisease

B) Gaucher's disease

C) Tay-Sachs disease

D) Krabbe's disease

56 / 202

A phospholipid molecule has a head and two tails. Where are the tails found?

Sindh MDCAT 2023
Biology
Elimination Tool:

A) As the surface of membrane

B) In the interior of the membrane

C) In the exterior of the membrane

D) Spanning of the membrane

57 / 202

Which of the following function dopamine serves?

Sindh MDCAT 2023
Biology
Elimination Tool:

A) ransmission blocker

B) Neurotransmitter

C) Anesthesia

D) Sedative

58 / 202

The acceptor of carbon dioxide in Calvin cycle Is:

Sindh MDCAT 2023
Biology
Elimination Tool:

A) RuBP

B) RuMP

C) PGA

D) PGAL

59 / 202

This part of brain involve in carrying long term memory:

Sindh MDCAT 2023
Biology
Elimination Tool:

A) Hippocampus

B) Cerebellum

C) Cerebrum

D) Pons

60 / 202

Penicillin blocks the active sites of an enzyme that many bacteria use in making cell wall. It is an example of:

Sindh MDCAT 2023
Biology
Elimination Tool:

A) Competitive inhibition

B) Incompetative inhibition

C) Feedback inhibition

D) Radiation effect

61 / 202

When Mendel crossed together two contrasting homozygous individuals, the phenotype of the hybrid in F1 cross appeared to be that of:

Sindh MDCAT 2023
Biology
Elimination Tool:

A) Recessive parent

B) Dominant parent

C) Indifferent

D) Half dominant & recessive

62 / 202

If a dihybrid cross is made between pisum sativum plants producing Yellow/Round and Green/Wrinkled seeds. Results of F2 generation show:

Sindh MDCAT 2023
Biology
Elimination Tool:

A) Yellow/Round- 9/16

B) Yellow/Wrinkled-3/16

C) Green/Round-3/16

D) Green/Wrinkled 1/16

63 / 202

The chemical compound has the same percentage (%) in the bacterial as well as the mammalian cell:

Sindh MDCAT 2023
Biology
Elimination Tool:

A) Carbohydrates

B) Protein

C) Lipid

D) Water

64 / 202

In nutritional terms, what among the following is sundew you categorized?

Sindh MDCAT 2023
Biology
Elimination Tool:

A) Autotrophic

B) Heterotrophic

C) Holazoic

D) Partially autotrophic/partially heterotrophic

65 / 202

Which one is the power house of cell?

Sindh MDCAT 2023
Biology
Elimination Tool:

A) Ribosomes

B) Golgi Apparatus

C) Mitochondria

D) Chloroplasts

66 / 202

If a dihybrid cross is made between pisum sativum plants producing Yellow/Round and Green/Wrinkled seeds. Results of F2 generation show:

Yellow/Round- 9/16

Yellow/Wrinkled-3/16

Green/Round-3/16

Green/Wrinkled 1/16

Which ratios of these results confirm independent assortment had taken place?

Sindh MDCAT 2023
Biology
Elimination Tool:

A) 09/16

B) 03/16

C) 1/16

D) 3/16 & 3/16

67 / 202

Which of the following compound is regarded as the precursor of many hormones like testosterone, progesterone and estrogens?

Sindh MDCAT 2023
Biology
Elimination Tool:

A) Wax

B) Cholesterol

C) Phospholipids

D) Acylglycerol

68 / 202

Which phenomenon describes the production of asexual form by sexual form and vice versa?

Sindh MDCAT 2023
Biology
Elimination Tool:

A) Colony

B) Alternation of generation

C) Parasitism

D) Polymorphism

69 / 202

Which of the following best describes the plasma membrane?

Sindh MDCAT 2023
Biology
Elimination Tool:

A) Adhesible

B) Permeable

C) Impermeable

D) Semipermeable

70 / 202

Hlow much of temperature (°C) rise will be observed. as per the definition of specific capacity, if energy is used to raise the temperature of 1 gram ofa substance?

Sindh MDCAT 2023
Biology
Elimination Tool:

A) 1°C

B) 2°C

C) 3°C

D) 10°C

71 / 202

The artificial selection in breeding provides a strong evidence for evolution. What does this term means?

Sindh MDCAT 2023
Biology
Elimination Tool:

A) Vestigial organ

B) Domestication

C) Mutation

D) Homology

72 / 202

Chemical substance that can react with an enzyme faster than real substrate and without produce a product is:

Sindh MDCAT 2023
Biology
Elimination Tool:

A) Accelerator

B) Inhibitor

C) Coenzyme

D) Activator

73 / 202

Testes developed inside the abdomen. In which of the following structure do they lie before birth?

Sindh MDCAT 2023
Biology
Elimination Tool:

A) Sac

B) Serotum

C) Pouch

D) Vesicle

74 / 202

Protein layers is embedd in lipid bilayers, this was explained by:

Sindh MDCAT 2023
Biology
Elimination Tool:

A) Lock and key Model

B) Induced fit model

C) Fluid mosaic model

D) Sandwich model

75 / 202

The hepatitis Which pass from mother to her child during pregnancy is:

Sindh MDCAT 2023
Biology
Elimination Tool:

A) Hepatitis A

B) Hepatitis B

C) Hepatitis C

D) Hepatitis D

76 / 202

Which of the following best characterizes the viruses with un-enveloped plus- (I point) strand RNA?

Sindh MDCAT 2023
Biology
Elimination Tool:

A) Lacking envelope

B) Having DNA

C) Act indirectly:

D) Enveloped

77 / 202

Which of the following is the end product of anaerobic respiration?

Sindh MDCAT 2023
Biology
Elimination Tool:

A) Methyl alcohol

B) Acetaldehyde

C) Formaldehyde

D) Ethyl alcohol

78 / 202

Which of the following are the genetically engineered bacteria that are used to make human growth hormone and insulin for diabetics?

Sindh MDCAT 2023
Biology
Elimination Tool:

A) Pneumococcus

B) E. Coli

C) Rhizobium

D) Nost

79 / 202

Corpus luteum in mammals occur in:

Sindh MDCAT 2023
Biology
Elimination Tool:

A) Brain & connects the two cerebral hemispheres

B) Ovaries & produces progesterone hormones

C) Heart & initiate arterial connection

D) Skin & acts as a pain receptor

80 / 202

Which of the following statements is correct about semilunar valves?

Sindh MDCAT 2023
Biology
Elimination Tool:

A) Present in veins to prevent backward flow

B) Present in arteries to regulate jerks in pulsations

C) Present in capillaries to regulate flow of blood

D) Present in aorta to prevent backward flow

81 / 202

Bacterial cell wall made-up of:

Sindh MDCAT 2023
Biology
Elimination Tool:

A) Cellulose & pectin

B) Cellulose & cutin

C) Hemicellulose & chitin

D) Amino acid & sugar

82 / 202

Which of the following is a disease in which the blood fails to clot?

Sindh MDCAT 2023
Biology
Elimination Tool:

A) Colour blindness

B) Haemophilia

C) Diabetics

D) Alkaptonuria

83 / 202

Lysozyme represent this basic structural level of protein is:

Sindh MDCAT 2023
Biology
Elimination Tool:

A) Primary structure

B) Secondary structure

C) Tertiary structure

D) Quaternary structure

84 / 202

What’s the optimum pH of pepsin in stomach?

Sindh MDCAT 2023
Biology
Elimination Tool:

A) 3

B) 2

C) 2.5

D) 1.4

85 / 202

This muscle controls the diameter of your blood vessels:

Sindh MDCAT 2023
Biology
Elimination Tool:

A) Smooth muscles

B) Striated muscles

C) Cardiac muscles

D) Skeletal muscles

86 / 202

These are required for the impulse to transfer from presynaptic to post-synaptic neuron:

Sindh MDCAT 2023
Biology
Elimination Tool:

A) Sodium

B) Potassium

C) Calcium

D) Proteins

87 / 202

Which part of the brain is responsible for higher cognitive functions such as thinking reasoning and problem solving?

Sindh MDCAT 2023
Biology
Elimination Tool:

A) Medulla oblongata

B) Cerebellum

C) Cerebrum

D) Hypothalamus

88 / 202

Mr. X & Mrs. X have same genotype |^| for blood group. What is the expected probability of the blood group of their children?

Sindh MDCAT 2023
Biology
Elimination Tool:

A) Blood Group 'A-1.00, Blood Group 'O'-0.00

B) Blood Group 'A'-0.75, Blood Group 'O'-0.25

C) Blood Group 'A-0.50, Blood Group 'O'-0.50

D) Group 'A- 0.25, Blood Group 'O'-0.75

89 / 202

Just given function is associated with lysosomes:

Sindh MDCAT 2023
Biology
Elimination Tool:

A) Protein synthesis

B) Processing & packaging

C) Intracellular digestion

D) Lipid synthesis

90 / 202

What’s the importance of krebs’s cycle?

Sindh MDCAT 2023
Biology
Elimination Tool:

A) Production of amino acids

B) Production of vitamins

C) production of ATP molecules through oxidative phosphorylation

D) Production of pyruvic acid

91 / 202

How long does it take in action potential to occur?

Sindh MDCAT 2023
Biology
Elimination Tool:

A) Few minutes

B) Few milliseconds

C) Few hours

D) Few seconds

92 / 202

Through which of the following does rabies spread?

Sindh MDCAT 2023
Biology
Elimination Tool:

A) Cat

B) Fox

C) Dog

D) Pig

93 / 202

Which of the following is a good evidence of an evolutionary pathway leading from reptiles to birds?

Sindh MDCAT 2023
Biology
Elimination Tool:

A) Mammals

B) Fishes

C) Archaeopteryx

D) Arthropods

94 / 202

How are the ribs attached to vertebrae?

Sindh MDCAT 2023
Biology
Elimination Tool:

A) Fixed joints

B) Moveable joints

C) Hall & socket joints

D) Partially movable joints

95 / 202

A reflex involve sensory and a motor neuron the way such transmission is called:

Sindh MDCAT 2023
Biology
Elimination Tool:

A) Synapse

B) Mono synaptic

C) Reflex arc

D) Synaptic cleft

96 / 202

The evolution of birds has long been a difficult issue for biologists until the discovery of the Archaeopteryx fossil in 1861. This ancient bird exhibited teeth, a long tail containing 20 vertebrae and wings with movable finger and claws. In the light of mentioned facts who were the ancestors of the birds?

Sindh MDCAT 2023
Biology
Elimination Tool:

A) Insects

B) Pisces

C) Amphibians

D) Reptiles

97 / 202

What is the volume of blood pumped per minute by the left ventrical into the system circuit called?

Sindh MDCAT 2023
Biology
Elimination Tool:

A) Cardiac output

B) Systole

C) Atrial system

D) Ventricular system

98 / 202

A virus enters into the body of host & intends to produce DNA from RNA.
Which enzyme is required for this process?

Sindh MDCAT 2023
Biology
Elimination Tool:

A) Transcriptase

B) Reverse transcriptase

C) Oxidoreductase

D) Ligases

99 / 202

After ovulation Graaf follicle converts into:

Sindh MDCAT 2023
Biology
Elimination Tool:

A) Corpus callosum

B) Corpus albicans

C) Corpus luteum

D) Corpus atresia

100 / 202

Earthworm is an example of:

Sindh MDCAT 2023
Biology
Elimination Tool:

A) Detritivores

B) Fluid feeder

C) Macrophagous

D) Microphagous

101 / 202

Glyceraldehyde & dihydroxy acetone are example of:

Sindh MDCAT 2023
Biology
Elimination Tool:

A) Triose

B) Tetrose

C) Pentose

D) Hexose

102 / 202

Evolutionary progress towards formation of organ system in cnidarians includes development of enteron and:

Sindh MDCAT 2023
Biology
Elimination Tool:

A) Rudimentary network of nerves

B) Symmetry

C) Cnidocytes

D) Cellular organization

103 / 202

Polygenic inheritance forms the bases of:

Sindh MDCAT 2023
Biology
Elimination Tool:

A) Codominance

B) Incomplete dominance

C) Continuous variation

D) Discontinuous variation

104 / 202

In humans beings multiple alleles control inheritance of:

Sindh MDCAT 2023
Biology
Elimination Tool:

A) Blood groups

B) Phenylketonuria

C) Colour blindness

D) Sickle cell anemia

105 / 202

Which enzyme is secreted in an inactive state, to prevent it from digesting in own cells?

Sindh MDCAT 2023
Biology
Elimination Tool:

A) Laetase

B) sucrase

C) Maltase

D) Pepsin

106 / 202

The structure of an enzyme is altered by:

Sindh MDCAT 2023
Biology
Elimination Tool:

A) Irreversible inhibition

B) Reversible inhibition

C) Competitive inhibition

D) Non competitive inhibition

107 / 202

An orthopedic specialist observed the X-ray of the joint of a patient and detected hardening of the cartilage due to excess calcium deposit. Consequently, the joint was very stiff and crippled the patient. What was the patients suffering from?

Sindh MDCAT 2023
Biology
Elimination Tool:

A) Dise slip

B) Sponfylosis

C) Arthritis

D) Sciatica

108 / 202

In carbohydrate hydrogen & oxygen are mostly in the same ratio i.e. 2:1 that’s why they are called:

Sindh MDCAT 2023
Biology
Elimination Tool:

A) carbon monoxide

B) carbon dioxide

C) hydrated carbons

D) Triose

109 / 202

It serves as vector in genetic engineering:

Sindh MDCAT 2023
Biology
Elimination Tool:

A) Plastids

B) Plasmid

C) Nucleoid

D) Pills

110 / 202

What is formed, when the blastula folds inwards?

Sindh MDCAT 2023
Biology
Elimination Tool:

A) Morula

B) Blastocoel

C) Blastopore

D) Gastrula

111 / 202

Which of the following describes coral reefs used by Hakeem in preparing eastern medicines?

Sindh MDCAT 2023
Biology
Elimination Tool:

A) Diamond

B) Emerald

C) Ruby

D) Marjan

112 / 202

Which cavities are present around the joints and contain a thin oily fluid the reduces friction and keeps the joints moving freely?

Sindh MDCAT 2023
Biology
Elimination Tool:

A) Synovial

B) Ventricles

C) Acetabulum

D) Deltoid ridge

113 / 202

What is the cementing layer between two daughter cells called?

Sindh MDCAT 2023
Biology
Elimination Tool:

A) Primary wall

B) Secondary wall

C) Middle lamella

D) Cell membrane

114 / 202

Carnivorous adaptation of plants, due to relatively low content of:

Sindh MDCAT 2023
Biology
Elimination Tool:

A) Nitrogen

B) Potassium

C) Sulphur

D) Calcium

115 / 202

At equilibrium, a scientist added more substrate and observed an increase in the rate of the reaction which soon declined. He added some more substrate but this time the rate of the reaction remain unaffected. What was the reason?

Sindh MDCAT 2023
Biology
Elimination Tool:

A) Enzyme did not function

B) Feedback due to the accumulation of the end product

C) Enzyme was more than substrate's active sites

D) substrate's did not function

116 / 202

Membranous infoldings in bacteria that initiate DNA replication is:

Sindh MDCAT 2023
Biology
Elimination Tool:

A) Mesosomes

B) Peroxisomes

C) Glyoxysomes

D) Nucleosomes

117 / 202

In the process of ovulation, which of the following sactures sucks the egg released from alternate ovary, every month

Sindh MDCAT 2023
Biology
Elimination Tool:

A) Oviducts

B) Uterus

C) Vagina

D) Ureter

118 / 202

Which of the following reactions can be used for the conversion of ethyl alcohol into acet aldehyde?

Sindh MDCAT 2023
Chemistry
Elimination Tool:

A) Polymerization

B) Dehydrogenation

C) Esterification

D) Reduction

119 / 202

The total capacity of a human lung is 5 litres. What percentage of it is filled when one takes and extra deep breath?

Sindh MDCAT 2023
Biology
Elimination Tool:

A) 10%

B) 40%

C) 60%

D) 80%

120 / 202

Fertilization of ovum takes place in rabbit, man and other placental mammals in:

Sindh MDCAT 2023
Biology
Elimination Tool:

A) Ovary

B) Uterus

C) Cervis

D) Fallopian tube

121 / 202

Photosynthesis bacteria utilise H2S instead of water and liberate one of the following instead of oxygen:

Sindh MDCAT 2023
Biology
Elimination Tool:

A) Sulphur

B) Phosphorus

C) Calcium

D) Magnesium

122 / 202

Carolus Linnaeus was the believer of:

Sindh MDCAT 2023
Biology
Elimination Tool:

A) Catastrophism

B) Inheritance of acquired characters

C) Natural selection

D) Special creation

123 / 202

The one molecule of fatty acid forming ester bond with one molecule of long chain alcohol is:

Sindh MDCAT 2023
Biology
Elimination Tool:

A) Saturated acylglycerol

B) Unsaturated acylglycerol

C) Phospholipids

D) Waxes

124 / 202

Anaerobic respiration compared to aerobic respiration, it produces?

Sindh MDCAT 2023
Biology
Elimination Tool:

A) More ATPs

B) Less ATPs

C) Equal ATPs

D) Dies not produce ATPs

125 / 202

What will be suitable response to the question: How was your day at school?’

Sindh MDCAT 2023
English
Elimination Tool:

A) I'm going to the park

B) My favorite subject is math

C) It was great, thanks for asking

D) I don't like school

126 / 202

Choose the sentence with correct use of apostrophe in possessives:

Sindh MDCAT 2023
English
Elimination Tool:

A) The cats toys are in the corner.

B) The cat's toys are in the corner.

C) The cats' toys are in the corner

D) The cars' toys' are in the corner

127 / 202

Nobody known when fiction started, Perhaps, the first story teller was a prehistoric mother trying to explain the world to her children or maybe it was a hunter talking about his adventure around the compfire, Who can tell? What we do know, though, is that story-telling was a purely activity around 800 BC .Myths and tales were passed down by word of mouth and hod to be popularized by each new generation of story tellers. This oral tradition only example of Homer a professional story teller who lived in the eighth century BC.

It is stressed In the passage that story-telling:

Sindh MDCAT 2023
English
Elimination Tool:

A) began as a written activity

B) became far more popular with the invention of writing

C) was first introduced by Homer in ancient times

D) possibly began in prehistoric times

128 / 202

What is the antonym of “generous”?

Sindh MDCAT 2023
English
Elimination Tool:

A) Selfish

B) Charitable

C) Benevolent

D) Kind

129 / 202

Identify the sentence with incorrect use of punctuation.

Sindh MDCAT 2023
English
Elimination Tool:

A) I'm going to the store: do you need anything?

B) I'm going to the store, do you need anything?

C) I'm going to the store do you need anything?

D) "I'm going to the store, do you need anything?"

130 / 202

Which article should be used in the blank to make the sentence grammatically correct.

“He lives in ________ old house”

Sindh MDCAT 2023
English
Elimination Tool:

A) a

B) an

C) the

D) Blank

131 / 202

Which of the following sentences has the correct word order?

Sindh MDCAT 2023
English
Elimination Tool:

A) She usually goes for jogging in the evening.

B) In the evening goes site usually for jogging.

C) She goes to the usually for jogging evening

D) Usually she for jogging goes in the evening

132 / 202

Identity the mistake in the use of prepositions in the following sentence:
She is good at cooking in the kitchen.

Sindh MDCAT 2023
English
Elimination Tool:

A) It's a correct sentence

B) The preposition at" should be omitted

C) The preposition "in" should be "on"

D) The preposition "cooking" should be "to cook"

133 / 202

Nobody known when fiction started, Perhaps, the first story teller was a prehistoric mother trying to explain the world to her children or maybe it was a hunter talking about his adventure around the compfire, Who can tell? What we do know, though, is that story-telling was a purely activity around 800 BC .Myths and tales were passed down by word of mouth and hod to be popularized by each new generation of story tellers. This oral tradition only example of Homer a professional story teller who lived in the eighth century BC.

Myths were passed down by:

Sindh MDCAT 2023
English
Elimination Tool:

A) written scriptures

B) carved activity

C) by word of mouth

D) inscribed activity

134 / 202

The Sun began to ____ behind the mountains, casting a warm and beautiful glow across the valley.

Sindh MDCAT 2023
English
Elimination Tool:

A) rise

B) set

C) shine

D) sleep

135 / 202

Which sentence has correct grammatical and stye structure?

Sindh MDCAT 2023
English
Elimination Tool:

A) They're playing soccer

B) The playing soccer

C) Their playing soccer

D) They have play soccer

136 / 202

Which sentence demonstrates correct subject-verb agreement?

Sindh MDCAT 2023
English
Elimination Tool:

A) The cat are sleeping.

B) The cats is sleeping.

C) The cat is sleeping.

D) The cats are sleeping.

137 / 202

Nobody known when fiction started, Perhaps, the first story teller was a prehistoric mother trying to explain the world to her children or maybe it was a hunter talking about his adventure around the compfire, Who can tell? What we do know, though, is that story-telling was a purely activity around 800 BC .Myths and tales were passed down by word of mouth and hod to be popularized by each new generation of story tellers. This oral tradition only example of Homer a professional story teller who lived in the eighth century BC.

The contextual meaning of fiction is:

Sindh MDCAT 2023
English
Elimination Tool:

A) Narrative

B) Textbook

C) Prose

D) Truth

138 / 202

Identify the error in the sentence: “His the car is red.”

Sindh MDCAT 2023
English
Elimination Tool:

A) It's a correct sentence

B) The article "His" is unnecessary.

C) The word order is incorrect; it should be "His car is red."

D) The adjective "red" should be "blue'

139 / 202

Identify the fragment in the following options:

Sindh MDCAT 2023
English
Elimination Tool:

A) He went to the store

B) Quickly, before the rain started.

C) The cat is sitting on the window.

D) She had a delicious meal.

140 / 202

After a long day at work, Sarah found ______ In her favorite book, escaping into a captivating world.

Sindh MDCAT 2023
English
Elimination Tool:

A) solace

B) chaos

C) endurance

D) agony

141 / 202

Which sentence demonstrates the correct use of past tense?

Sindh MDCAT 2023
English
Elimination Tool:

A) She will go to the store yesterday,

B) They will be eating lunch now,

C) He had finished his homework before dinner,

D) We are meeting them tomorrow

142 / 202

Identify the sentence with the incorrect use of apostrophe:

Sindh MDCAT 2023
English
Elimination Tool:

A) That is Mary's book.

B) The dog's leash is in the car.

C) Its a beautiful day outside.

D) The childrens' toys are in the playroom.

143 / 202

Oxidation of secondary propyl alcohol gives:

Sindh MDCAT 2023
Chemistry
Elimination Tool:

A) Aceton

B) Acet aldehyde

C) Ethyl alcohol

D) n-propyl alcohol

144 / 202

What Is the IUPAC name of α, β-dimethyl valeric acid?

Sindh MDCAT 2023
Chemistry
Elimination Tool:

A) 2,3-dimethyl hexanoic acid

B) 3,4-dimethyl hexanoic acid

C) 3,4-dimethylpentanoic acid

D) 2,3-dimethyl pentanoic acid

145 / 202

1 atm of a gas is at 25°C. The pressure is increased to atm at ___°C. Volume will be changed from ____ dm3 to___?

Sindh MDCAT 2023
Chemistry
Elimination Tool:

A) 0.542 dm3

B) 2 dm3

C) 3 dm3

D) 4 dm3

146 / 202

Enzyme show optimum activity between 37°C to 50°C It however works:

Sindh MDCAT 2023
Chemistry
Elimination Tool:

A) Above 50°C

B) Below 37°C

C) it loses activity permanently above 50°C

D) It loses activity perrnaneJsly below 37°C

147 / 202

What hybridization is present on carbon atoms in ethyne C2H2?

Sindh MDCAT 2023
Chemistry
Elimination Tool:

A) sp3

B) sp2

C) sp

D) dsp2

148 / 202

Isopropyl chloride is an example of:

Sindh MDCAT 2023
Chemistry
Elimination Tool:

A) Primary alkyl halide

B) Secondary alkyl halide

C) Tertiary alkyl halide

D) Ouaternary alkyl halide

149 / 202

An organic compound has C=40%, H=6.67% and O=53.3% What is the empirical formula of the compound?

Sindh MDCAT 2023
Chemistry
Elimination Tool:

A) CH3O

B) C2H2O

C) CH2O

D) C2H6O

150 / 202

Which of the following is formed when acetone is oxidized?

Sindh MDCAT 2023
Chemistry
Elimination Tool:

A) Formic acid

B) Ethanoic acid

C) Propanoic Acid

D) Butyric Acid

151 / 202

What is the mass of one proton?

Sindh MDCAT 2023
Chemistry
Elimination Tool:

A) Equal to 1836 electron

B) Equal to positron

C) Equal to electron

D) Equal to 1836 neutron

152 / 202

Water rises In capillary tube because of:

Sindh MDCAT 2023
Chemistry
Elimination Tool:

A) Cohesive force and adhesive force are same

B) Adhesive forces of molecules exceed cohesive force

C) Cohesive force is greater than adhesive force

D) Cohesive and adhesive force to explain the property in the above question is irrelevant

153 / 202

What is the mathematical statement of the first law of thermodynamics?

Sindh MDCAT 2023
Chemistry
Elimination Tool:

A) ∆E=q+W

B) ∆E=-q+W

C) ∆E=-q-W

D) ∆E=q-W

154 / 202

Which of the following reactions has the same value of Kc and Kp?

Sindh MDCAT 2023
Chemistry
Elimination Tool:

A) N2+ 3H2 ⇌ 2NH3

B) PCI5 ⇌ PCI3 +CI2

C) H2 + I2 ⇌ 2HI

D) 2SO2 + O2 ⇌ 2SO

155 / 202

Which of the following temperature is referred to as absolute zezo?

Sindh MDCAT 2023
Chemistry
Elimination Tool:

A) -273.16°C

B) -273.16 K

C) 0°C

D) 32 °F

156 / 202

In which spectral series is the far ultraviolet region of electromagnetic spectrum found?

Sindh MDCAT 2023
Physics
Elimination Tool:

A) Paschen series

B) Balmer series

C) Lyman series

D) Pfund series

157 / 202

In electrochemical series, what is the electrode potential of all metals above hydrogen?

Sindh MDCAT 2023
Chemistry
Elimination Tool:

A) zero

B) Negative

C) Positive

D) Greater than zero

158 / 202

Graph of volume versus Pressure at constant temperature:

Sindh MDCAT 2023
Chemistry
Elimination Tool:

A) A straight line

B) First a curve then a straight line

C) first a straight line and then a curve line

D) non linear

159 / 202

Benzene is subjected to (1) Alkylation (2) Nitration (3) Oxidation, the product is:

Sindh MDCAT 2023
Chemistry
Elimination Tool:

A) m- nitrobenzoic acid

B) o- nitrobenzoic acid and p- nitrobenzoic acid

C) m-nitrotoluene

D) o-nitrotoluene and p-nitrotoluene

160 / 202

Which of the following best describes the ionic reaction of inorganic compounds?

Sindh MDCAT 2023
Chemistry
Elimination Tool:

A) Very slow

B) Moderately slow

C) Very fast

D) Not occurs

161 / 202

Which of the following produce maleic anhydride on oxidation?

Sindh MDCAT 2023
Chemistry
Elimination Tool:

A) Acetylene

B) Phenol

C) Toluene

D) Benzene

162 / 202

Ca (Z=20) forms ionic bond with CI (Z=17)? What is the chemical formula of Calcium Chloride?

Sindh MDCAT 2023
Chemistry
Elimination Tool:

A) CaCI

B) CaCI2

C) Ca2CI2

D) Ca2CI

163 / 202

CO2 and SO2 are two compounds. Which of the following best describe these two compords?

Sindh MDCAT 2023
Chemistry
Elimination Tool:

A) Both CO2 and SO2 are linear and non polar

B) CO2 is angular and polar SO2 is linear and non-polar

C) CO2 in linear and non-polar SO2 is angular and polar

D) Both CO2 and SO2 are angular and polar

164 / 202

Which of the following refers to the DC current that does not change its intensity?

Sindh MDCAT 2023
Physics
Elimination Tool:

A) Eddy's current

B) Surge current

C) Leakage current

D) Steady current

165 / 202

Metallic property in a group of P-block element has a trend:

Sindh MDCAT 2023
Chemistry
Elimination Tool:

A) Decreases

B) Increases

C) Remains same

D) Irregular trend

166 / 202

1 J/sec is equals to:

Sindh MDCAT 2023
Physics
Elimination Tool:

A) 1 K

B) 1 N

C) 1 T

D) 1 Watt

167 / 202

Valence shell electronic configuration of an element is 4s2 , 4p1. To which group does the element belong?

Sindh MDCAT 2023
Chemistry
Elimination Tool:

A) Ⅰ-B

B) Ⅱ-B

C) Ⅰ-A

D) Ⅲ-A

168 / 202

What is the oxidation number of Mn in K2MnO4?

Sindh MDCAT 2023
Chemistry
Elimination Tool:

A) +2

B) +4

C) +6

D) +7

169 / 202

Which of the Following is true for a reversible reaction at equilibrium?

Sindh MDCAT 2023
Chemistry
Elimination Tool:

A) The rate of forward reaction is greater than backward reaction

B) The rate of forward reaction is lesser than backward reaction

C) The rate of backward reaction is equal to forward reaction

D) The rate of backward reaction is greater than forward reaction

170 / 202

Radius of the first orbit of hydrogen is 0.53 A. Which orbit has a radius of 4.77 A?

Sindh MDCAT 2023
Chemistry
Elimination Tool:

A) First

B) Second

C) Third

D) Fourth

171 / 202

Which of the following influences the variation of temperature at which boiling of liquid takes place?

Sindh MDCAT 2023
Chemistry
Elimination Tool:

A) Outside pressure

B) Outside temperature

C) Volume of container

D) Amount of liquid

172 / 202

What volume of oxygen at STP required to burn 500 dm3 of ethene?

Sindh MDCAT 2023
Chemistry
Elimination Tool:

A) 500 dm3

B) 1000 dm3

C) 1500 dm3

D) 2000 dm3

173 / 202

Which of the following is an amino acid?

Sindh MDCAT 2023
Chemistry
Elimination Tool:

A) Benzoic acid

B) Palmitic acid

C) Aspartic Acid

D) Aniline

174 / 202

What is the IUPAC name of stearic acid?

Sindh MDCAT 2023
Chemistry
Elimination Tool:

A) Hexanoic acid

B) Octadecanoic acid

C) Octanoic acid

D) Hexadecenoic acid

175 / 202

Organic compounds are classified into:

Sindh MDCAT 2023
Chemistry
Elimination Tool:

A) Carbon compounds and non carbon compounds

B) open chain and closed chain compound

C) Homocyclic and Heterocyclic compound

D) Aromatic and Cyclic compound

176 / 202

Which type of isomerism propanal and acetone exhibit?

Sindh MDCAT 2023
Chemistry
Elimination Tool:

A) functional group isomerism

B) Chain isomerism

C) Position isomerism

D) Metamerism

177 / 202

Which of the following is formed when form aldehyde is treated with oxidizing mixture (H2SO4+K2Cr2O7)

Sindh MDCAT 2023
Chemistry
Elimination Tool:

A) Methanol

B) Methanoic acid

C) Acetone

D) Acet Aldehyde

178 / 202

The internal resistance of a battery is:

Sindh MDCAT 2023
Physics
Elimination Tool:

A) In parallel to the external load

B) In series to the external load

C) Not connected to the external load

D) Zero

179 / 202

Which of the following is a covalent crystal?

Sindh MDCAT 2023
Chemistry
Elimination Tool:

A) NaCI

B) KCI

C) MgBr

D) Diamond

180 / 202

Which of the following condition is required for maximum yield of ammonia through Haber’s process?

Sindh MDCAT 2023
Chemistry
Elimination Tool:

A) Increasing temperature

B) Decreasing concentration of reactant

C) Decreasing pressure

D) Decreasing temperature

181 / 202

The electric potential sets across the terminals of a battery is called:

Sindh MDCAT 2023
Physics
Elimination Tool:

A) Potential difference

B) EMF

C) Internal potential group

D) Terminal voltage

182 / 202

The ohm’s law is applicable if:

Sindh MDCAT 2023
Physics
Elimination Tool:

A) Temperature of the conductor becomes infinite

B) Temperature of the conductor increases

C) Temperature of the conductor decreases

D) Temperature of the conductor remains same

183 / 202

What Is ∆H equal to according to the first law of thermodynamics?

Sindh MDCAT 2023
Chemistry
Elimination Tool:

A) ∆E – P∆V

B) ∆E + P∆V

C) -∆E + P∆V

D) -∆E – P∆V

184 / 202

Superoxide of Group I-A element (M) has formula:

Sindh MDCAT 2023
Chemistry
Elimination Tool:

A) M2O

B) M2O4

C) MO2

D) M2O2

185 / 202

The nature of attraction which hold molecular crystals is:

Sindh MDCAT 2023
Chemistry
Elimination Tool:

A) ionic bond

B) hydrogen bond

C) Covalent bond

D) Van der Waal forces

186 / 202

What is the IUPAC name of chloroform?

Sindh MDCAT 2023
Chemistry
Elimination Tool:

A) chloro methane

B) dichloro methane

C) trichloro methane

D) tetra chloro methane

187 / 202

Which of the following has only one orientation is space in the magnetic field?

Sindh MDCAT 2023
Chemistry
Elimination Tool:

A) p orbital

B) s orbital

C) d orbital

D) f orbital

188 / 202

The ligand, diethylene triamine is an example of:

Sindh MDCAT 2023
Chemistry
Elimination Tool:

A) Bidentate

B) Tridentate

C) Pentadentate

D) Hexadentate

189 / 202

Which of the following will give lodoform reaction on the treatment with Na2CO3 and I2?

Sindh MDCAT 2023
Chemistry
Elimination Tool:

A) Methanol

B) Acetic Acid

C) Acetic Anhydride

D) Acetone

190 / 202

Oxidation of Toluene by KMnO4, the product is:

Sindh MDCAT 2023
Chemistry
Elimination Tool:

A) o-nitro toluene

B) p-nitro toluene

C) m-nitro toluene

D) Benzoic acid

191 / 202

In which spectral series is the far ultraviolet region of electromagnetic spectrum found?

Sindh MDCAT 2023
Chemistry
Elimination Tool:

A) Paschen series

B) Balmer series

C) Lyman series

D) Pfund series

192 / 202

7.6 grams of CS2 is reacted with 12.8 g of O2, CS2, + 3O2, —> CO2 + 2SO2
limiting reactant ts:

Sindh MDCAT 2023
Chemistry
Elimination Tool:

A) CS2

B) O2

C) CO2

D) SO2

193 / 202

The elimination reaction between alkyl halides and strong base takes place by two mechanisms, E1 and E2. How many steps are involved in each one of these?

Sindh MDCAT 2023
Chemistry
Elimination Tool:

A) E1 elimination is two steps and E2 is one step

B) E1 and E2 both takes place in one step

C) E1and E2both takes place in two step

D) E1elimination is one steps and E2is two step

194 / 202

What is the order of reaction, if the unit of K is sec-1 ?

Sindh MDCAT 2023
Chemistry
Elimination Tool:

A) One

B) Two

C) Three

D) Zero

195 / 202

When benzene reacts with isoprpyl chloride in the presence of AICI2 as lewis acid, the product formed is isopropyl benzene, what is this reaction called?

Sindh MDCAT 2023
Chemistry
Elimination Tool:

A) Friedel Craft's acylation

B) Friedel Craft's alkylation

C) Halogenation of benzene

D) Benzene sulphonic acid

196 / 202

Dry distillation of which of the following can be done to produce acetone?

Sindh MDCAT 2023
Chemistry
Elimination Tool:

A) Calcium acetate

B) Calcium formate

C) Ethyl acetate

D) Acetic Acid

197 / 202

Which of the following are the isomers of pentane?

Sindh MDCAT 2023
Chemistry
Elimination Tool:

A) n-pentane, 2-methyl butane, 2,2-dimethylpropane

B) n-pentane, 2-methyl butane, 2,3-dimethyl butane

C) n-pentane, 3-methyl butane, 2,2-dimethylpentane

D) n-pentane, 2-methyl pentane, 2,2-dimethyl propane

198 / 202

Which pair of elements markedly differ from other members of their respective groups?

Sindh MDCAT 2023
Chemistry
Elimination Tool:

A) Potassium and Calcium

B) Sodium and Magnesium

C) Cesium and Barium

D) Lithium and Beryllium

199 / 202

Why do transition elements form interstitial compounds?

Sindh MDCAT 2023
Chemistry
Elimination Tool:

A) Presence of unpaired electrons

B) Transition of electrons from t2g to eg within d orbitals

C) Holes present in crystal lattice of transition elements

D) Small, highly charged ions and vacant d-orbitals of suitable energy

200 / 202

Which of the following Is formed when excess of ethyl alcohol is treated with concentrated H2O4 at low temperature?

Sindh MDCAT 2023
Chemistry
Elimination Tool:

A) Diethyl ether

B) Dimethyl ether

C) Ethene

D) Acetylene

201 / 202

Which of the following is an example of tertiary alkyl halide?

Sindh MDCAT 2023
Chemistry
Elimination Tool:

A) 2-chloro butane

B) 1-chloto-2- methyl pentane

C) 2-bromo- 3-methyl butane

D) 2-bromo-2-methyl butane

202 / 202

Which of the following is different in Na+ (Z=11), Mg+2 (Z=12) and AI+3 (Z=13)?

Sindh MDCAT 2023
Chemistry
Elimination Tool:

A) Number of shells

B) Number of electrons

C) Electronic configuration

D) Number of protons

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