FSC Chemistry MCQs Chapter 4 Class 11 - PLS Prep by PakLearningSpot

NUST entry test 2023 NET contains most of the Chemistry MCQs. FSC Part 1 Chemistry book MCQs. HSSC Chemistry questions MCQs. Solved Chapterwise Chemistry MCQs for first-year 11 class MCQs. Second-year and first-year Chemistry textbooks chapter-wise MCQs with the answer are provided here. PakLearningSpot PLS MCQs Bank website for FREE Entry test preparations

2743

Created on February 10, 2022

Chemistry Ch 4 Class 11 States of Matter – Gases, Liquids and Solids

1 / 73

Gas is enclosed in a container of 20 cm3 with the moving piston. According to kinetic theory of gases, what will be the effect on freely moving molecules of the gas if temperature is increased from 20 C to 100 C?

UHS 2018
Chemistry
States of Matter – Gases, Liquids and Solids
Elimination Tool:

A) Pressure will become one half

B) Volume will be increased

C) Temperature has no effect on freely moving molecules

D) Colliding capability of molecule will become lower

2 / 73

if the crystal structure of Graphite is Hexagonal, the crystal system of Diamond will be:

Tetrahedral

Pyramidal

Cubic

Pentagonal

3 / 73

The value of R (the gas constant) is

NTS 2019
Chemistry
States of Matter – Gases, Liquids and Solids
Elimination Tool:

A) 0.0821dm3 atm k mol-1.

B) 803143 Nmk-Imole

C) 0.0821 dm3 atm k-I mol-1

D) 8.3143 dm3 atm-k-I mol

4 / 73

Crystal structure of diamond is

Trigonal

Tetrahedral

Cubic

None of these

5 / 73

Vapor pressure is measured by calculating the difference in liquid pressure and?

PMC Practice 2
Chemistry
States of Matter – Gases, Liquids and Solids
Elimination Tool:

A) Mercury pressure

B) Glass pressure

C) Atmospheric pressure

D) Container pressure

6 / 73

In the gaseous state, the distance between the molecules is ___ times _____ than their diameters.

PMC Sample 3
Chemistry
States of Matter – Gases, Liquids and Solids
Elimination Tool:

A) 2, lesser

B) 3, lesser

C) 3, greater

D) 2, greater

7 / 73

Which of the following is an assumption of the kinetic model of an ideal gas?

PMC Practice 6
Physics
States of Matter – Gases, Liquids and Solids
Elimination Tool:

A) Gas is at high pressure

B) Collision between particles are elastic

C) There are weak forces of attraction between particles in gas

D) Total energy of particles is proportional to the temperature

8 / 73

If the absolute temperature of a gas is reduced to one half and the pressure is doubled, the volume of gas will be:

NUMS 2018
Chemistry
States of Matter – Gases, Liquids and Solids
Elimination Tool:

A) Increased four times

B) Decreased four times

C) Remained unchanged

D) Reduced to one half

9 / 73

London forces are present in

PMC Sample 1
Chemistry
States of Matter – Gases, Liquids and Solids
Elimination Tool:

A) ammonia

B) water

C) kerosene oil

D) HCl

10 / 73

Amorphous solids turns into glass like state from rubber like state, this is called

PMC Sample 1
Chemistry
States of Matter – Gases, Liquids and Solids
Elimination Tool:

A) transition

B) crack transition

C) glass transition

D) all of these

11 / 73

The formula of Chile Saltpeter is?

PMC Practice 5
Chemistry
States of Matter – Gases, Liquids and Solids
Elimination Tool:

A) NaNO3

B) CaCO3

C) Ba(NO3)2

D) NH4Cl

12 / 73

Ice floats on the surface of water due to:

NUMS 2020
Chemistry
States of Matter – Gases, Liquids and Solids
Elimination Tool:

A) Larger bond length

B) Cubic structure of ice

C) Weak intermolecular forces

D) Empty spaces in the structure of ice

13 / 73

Which of the following has the higher bond forces amount its molecules

Hydrogen

Neon

Water

Hydrogen Fluoride

14 / 73

The rate of diffusion of hydrogen gas as compared to that of oxygen gas is:

PMC Sample 1
Chemistry
States of Matter – Gases, Liquids and Solids
Elimination Tool:

A) 6 times

B) 4 times

C) one fourth

D) one eighth

15 / 73

Which of the following is not a property of liquids:

No motion

Collision of molecules

Diffusion

All of these

16 / 73

Carbon dioxide is an Example of?

PMC Practice 4
Chemistry
States of Matter – Gases, Liquids and Solids
Elimination Tool:

A) Ionic Solid

B) Metallic Solid

C) Molecular Solid

D) Covalent Solid

17 / 73

Which type of movement is shown by the atoms of the solid?

PMC Practice 6
Chemistry
States of Matter – Gases, Liquids and Solids
Elimination Tool:

A) Translational motion

B) Vibrational motion

C) Rotational motion

D) Linear motion

18 / 73

The nature of Binding Force in Ionic Crystals is

PMC Sample 1
Chemistry
States of Matter – Gases, Liquids and Solids
Elimination Tool:

A) Magnetic

B) Repulsive

C) Electrostatic

D) Weak

19 / 73

Structure of ice is similar to which of the following?

PMC Practice 6
Chemistry
States of Matter – Gases, Liquids and Solids
Elimination Tool:

A) Liquid water

B) Diamond

C) Graphite

D) Sucrose

20 / 73

Which of the following properties does not belong to Gases?

PMC Practice 5
Chemistry
States of Matter – Gases, Liquids and Solids
Elimination Tool:

A) Indefinite volume

B) Indefinite shape

C) Low density

D) Strong interactions

21 / 73

All the collisions between the particles of gases are elastic in nature. What is meant by “Elastic Collisions”?

UHS 2019
Chemistry
States of Matter – Gases, Liquids and Solids
Elimination Tool:

A) No change in the total kinetic energy

B) The velocity of the molecules changes

C) No change in potential energy during the collisions

D) No change in mass during the collisions

22 / 73

273 mL of a gas at STP was taken to 27oC and 600 mm pressure. The final volume of the gas would be:

PMC Practice 2
Chemistry
States of Matter – Gases, Liquids and Solids
Elimination Tool:

A) 273 mL

B) 300 mL

C) 380 mL

D) 586 mL

23 / 73

Molecular substances differ from ionic substances in:

Low boiling points

Less electrical conductance

low melting points

All of these

24 / 73

Atoms in solids are

PMC Sample 3
Chemistry
States of Matter – Gases, Liquids and Solids
Elimination Tool:

A) Loosely Packed

B) In random motion

C) Excited

D) Closely packed

25 / 73

Which of the following bonds Is the weakest?

Ionic

Covalent

Dative Covalent

Hydrogen bonding

26 / 73

The variation in physical properties of a crystal due to direction is called

PMC Sample 1
Chemistry
States of Matter – Gases, Liquids and Solids
Elimination Tool:

A) isotropy

B) entropy

C) anisotropy

D) none of these

27 / 73

Number of molecules in 1 dm3 of water will be almost

PMC Sample 3
Chemistry
States of Matter – Gases, Liquids and Solids
Elimination Tool:

A) 18×6.022×10^23

B) 55.6×6.022×10^23

C) 18×6.022×10^23

D) 2×6.022×10^23

28 / 73

Which statement about liquids is not correct?

Can diffuse

Have definite volume

Molecules have negligible K.E

All

29 / 73

A fixed mass of an ideal gas is contained in a cylinder at constant temperature. Now, the pressure of the gas is decreased.

What happened to the molecules of gas?

PMC Practice 1
Physics
States of Matter – Gases, Liquids and Solids
Elimination Tool:

A) Their mean square speed decreases

B) Number of collision between molecules and walls of container decreased

C) The force of attraction between them increase

D) Their size decreases

30 / 73

The necessary condition for Boyle’s law to hold is that the process must be ______.

NTS 2019
Physics
States of Matter – Gases, Liquids and Solids
Elimination Tool:

A) Isobaric

B) Adiabatic

C) Isochoric

D) Isothermal

31 / 73

A liquid crystalline state exists between two temperatures i.e melting temperature and ____ temperature.

PMC Sample 1
Chemistry
States of Matter – Gases, Liquids and Solids
Elimination Tool:

A) boiling

B) freezing

C) clearing

D) all of these

32 / 73

Increasing the temperature of a liquid will decrease all except:

Surface tension

Density

Viscosity

Vapor pressure

33 / 73

Which of the following shows H-bonding?

PMC Sample 1
Chemistry
States of Matter – Gases, Liquids and Solids
Elimination Tool:

A) CH₃CH₂OH

B) CH₃-O-CH₃

C) CH₃CH₂Cl

D) All of these

34 / 73

Liquid in the container has a temperature 70°C. What will be the temperature on the Kelvin scale?

UHS 2018
Chemistry
States of Matter – Gases, Liquids and Solids
Elimination Tool:

A) 350 K

B) 343 K

C) 300 K

D) 283 K

35 / 73

Boyle’s law is stated as:”The product of pressure and volume of a fixed amount of gas at constant temperature is a _____ quantity

PMC Sample 3
Chemistry
States of Matter – Gases, Liquids and Solids
Elimination Tool:

A) variable

B) constant

C) discreet

D) decreasing

36 / 73

At 1489 mm of Hg, water will boil at:

NUMS 2019 Reconduct
Chemistry
States of Matter – Gases, Liquids and Solids
Elimination Tool:

A) 120 C

B) 110 C

C) 100 C

D) 90 C

37 / 73

The densities of liquids are much ________ than gases but ____ to solids.

PMC Sample 1
Chemistry
States of Matter – Gases, Liquids and Solids
Elimination Tool:

A) smaller, closer

B) greater, closer

C) smaller, far away

D) greater, far away

38 / 73

What is the % relative humidity at 25 C and 0.01876 atm if the vapor pressure of water is 23.76 mm Hg.

NUMS 2019 Cancelled
Chemistry
States of Matter – Gases, Liquids and Solids
Elimination Tool:

A) 40 %

B) 50 %

C) 60 %

D) 70%

39 / 73

Which one of the following has crystalline structure?

Diamond

Sugar

Boron Nitride

Lithium Carbide

All of these

40 / 73

Which of the following solids is isotropic?

PMC Practice 6
Chemistry
States of Matter – Gases, Liquids and Solids
Elimination Tool:

A) Ionic solids

B) Molecular solids

C) Amorphous solids

D) Metallic solids

41 / 73

Effusion of gases take place through a hole with:

NTS 2019
Chemistry
States of Matter – Gases, Liquids and Solids
Elimination Tool:

A) Hole dimensions

B) Infinite dimensions

C) Slit like dimensions

D) Molecular dimensions:

42 / 73

The e/m value is maximum for _____ gas becauseof _____ value of “m” for positive rays obtained from it.

PMC Practice 6
Chemistry
States of Matter – Gases, Liquids and Solids
Elimination Tool:

A) Oxygen gas, lowest

B) Hydrogen gas, highest

C) Hydrogen gas, lowest

D) Helium gas, highest

43 / 73

Vapor pressure of a liquid depends upon

) Nature of liquid

Temperature

Both a and b

Atomic Pressure

44 / 73

Water boils when:

Vapor pressure becomes equal to Atmospheric Pressure

Vapor pressure is less than Atmospheric Pressure

Vapor pressure is greater than Atmospheric Pressure

All of the above

45 / 73

Water has maximum density at:

NUMS 2019 Reconduct
Chemistry
States of Matter – Gases, Liquids and Solids
Elimination Tool:

A) -4 C

B) – 1 C

C) 0 C

D) 4 C

46 / 73

Which one of the following has the highest lattice energy?

NUMS 2019 Reconduct
Chemistry
States of Matter – Gases, Liquids and Solids
Elimination Tool:

A) NaCl

B KCl

C) KBr

D) LiCl

47 / 73

Viscosity of HF is: c) y d) a) Greater than 1120 b) Smaller than F120 c) Equal to HIO d) Plane of these

Greater than H2O

Smaller than H2O

Equal to H2O

None of these

48 / 73

Which of the following compound has the highest boiling point?

Water

HCL

Ammonia

49 / 73

What does the constant ‘n’ represent in the equation of state for an ideal gas PV = nRT?

PMC Practice 5
Physics
States of Matter – Gases, Liquids and Solids
Elimination Tool:

A) Number of atoms in the gas

B) Number of moles of the gas

C) Number of nucleons

D) Number of molecules of gas

50 / 73

Which of the following has the highest electrical conductivity?

NUMS 2018
Chemistry
States of Matter – Gases, Liquids and Solids
Elimination Tool:

A) Aqueous sugar solution

B) Solid graphite

C) Solid sodium chloride

D) Gaseous carbon dioxide

51 / 73

H2 and O2 are diffusing under the same condition how much H2 gas will diffuse?

NUMS 2017
Chemistry
States of Matter – Gases, Liquids and Solids
Elimination Tool:

A) 4

B) 16

C) 32

D) 0.5

52 / 73

Which one of the following is an example of covalent solid?

NaCI

Diamond

Mercury

All of these

53 / 73

The shape of crystal in which it usually grows is called its _____.

PMC Practice 6
Chemistry
States of Matter – Gases, Liquids and Solids
Elimination Tool:

A) Size

B) Capacity

C) Habit

D) Property

54 / 73

Hybridization in diamond is

sp2

sp3

dsp2

55 / 73

The rate of diffusion of liquids is ________ than gases.

PMC Practice 5
Chemistry
States of Matter – Gases, Liquids and Solids
Elimination Tool:

A) Lower

B) Higher

C) Equal to

D) All of these options are correct

56 / 73

Loose electrons present in outer shell meansv

High melting point

High boiling point means:

High conductivity

None of these

57 / 73

Which of the following statements is incorrect about amorphous solids?

PMC Practice 3
Chemistry
States of Matter – Gases, Liquids and Solids
Elimination Tool:

A) They are anisotropic

B) They are rigid and incompressible

C) They melt over a wide range of temperature

D) There is no orderly arrangement of particles

58 / 73

Vapor pressure depends on:

Intermolecular forces

Quantity of liquid

Site of the molecules

Surface area

Both a and d

59 / 73

When animals inhale air, oxygen will move into the lungs due to difference in partial pressure of oxygen in lungs and atmosphere. This obeys

PMC Sample 1
Chemistry
States of Matter – Gases, Liquids and Solids
Elimination Tool:

A) Pascal's law

B) Dalton's law

C) Charles's law

D) Bohr's law

60 / 73

The properties of liquid crystals are intermediate between crystals and:

PMC Practice 3
Chemistry
States of Matter – Gases, Liquids and Solids
Elimination Tool:

A) Anisotropic liquids

B) Nematic liquids

C) Isotropic liquids

D) Liquids

61 / 73

How many atmospheres correspond to 1050 torr?

NTS 2019
Chemistry
States of Matter – Gases, Liquids and Solids
Elimination Tool:

A) 1.050

B) 10.38

C) 1.380

D) 2.760

62 / 73

Vapor pressure depends on

Size of the container used to collect the gas

Current atmospheric pressure

Temperature of the liquid

d) Kind of gas that is being collected

63 / 73

Which one Is not possible a)

Ionic crystal

Covalent crystal

Metallic crystal

Atomic-crystal

64 / 73

A liquid has mass m and specific heat capacity c. The rate of change in temperature of the liquid is R. What is the rate at which heat is transferred from the liquid.

PMC Practice 2
Physics
States of Matter – Gases, Liquids and Solids
Elimination Tool:

A) Rmc

B) R/me

C) me/R

D) Rm/c

65 / 73

Molecular solids are different from others because they

Are formed by only non-polar molecules

Have low melting point

Have high conductivity

Have high density

66 / 73

The unit cell parameters of the monoclinic system are:

NTS 2019
Chemistry
States of Matter – Gases, Liquids and Solids
Elimination Tool:

A) a = b ≠ c ; α=β=γ=90

B) a ≠ b ≠ c ;α=γ=90 ; β≠90

C) a ≠ b = c ;α=β=90; γ≠90

D) a = b = c ;α=β=γ=90

67 / 73

Which of the following is the correct equation to calculate relative molecular mass of a gas.

UHS 2018
Chemistry
States of Matter – Gases, Liquids and Solids
Elimination Tool:

A) M = mPR / VT

B) M = PV / mRT

C) M = mPRT / V

D) M = mRT / PV

68 / 73

Change in extensive property is proportional to the change in ______ of material.

NUMS 2018
Chemistry
States of Matter – Gases, Liquids and Solids
Elimination Tool:

A) Temperature

B) Volume

C) Quantity

D) Pressure

69 / 73

Covalent bond is stronger than hydrogen bond by:

10 times

20 times

30 times

50 times

70 / 73

Which of the following is not a property of liquid?

Random movement of molecule

Molecules have the same position with respect to one another

Takes shape of the container

Are less common than solids and gases

71 / 73

Calculate the root mean square speed of He atoms at 295 K?

NUMS 2019 Cancelled
Chemistry
States of Matter – Gases, Liquids and Solids
Elimination Tool:

A) 34 cm/s

B) 3.6 x 104cm/s

C) 136000 cm/s

D) 63 cm/s

72 / 73

If electrons are loosely packed then:

The boiling point of solid Is high

The solid conducts electricity

They add to the solidity

The melting Point of solid is high

73 / 73

To conduct electricity through Ionic Solids, the ions should be:

PMC Practice 5
Chemistry
States of Matter – Gases, Liquids and Solids
Elimination Tool:

A) Excited

B) Energized

C) Free

D) In random motion

Your score is

The average score is 60%

Learn Anytime Anywhere

PakLearningSpot

Download PLS Mobile App from Google Play Store

6 responses to “FSC Chemistry MCQs Chapter 4 Class 11”

anosha sahito says:

April 13, 2022 at 12:45 pm

is these mcqs are by pmc syllabus
- Shahid Iqbal says:
  
  July 12, 2022 at 11:01 am
  
  Hmmmm lakin pmc na last time out of syllabus bhi too dia tha mcqs
syed hassan ali shah says:

May 30, 2022 at 3:57 am

how to check correct mcqs ?
Rqbia malik says:

June 23, 2022 at 1:21 pm

How to know correct answer
zeeshan malik says:

July 15, 2022 at 2:44 pm

Check out fOrr coRRect Ones??
Anonymous says:

June 6, 2023 at 3:51 pm

The answer of Q#3 is b not d