ECAT Pre Engineering Chemistry Chapter 4 MCQ Test With Answer

MCQ's Test For ECAT Chemistry Chapter 4 Liquids & Solids

Try The MCQ's Test For ECAT Chemistry Chapter 4 Liquids & Solids

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ECAT Chemistry Chapter 4 Liquids & Solids

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Question # 1

Which of the following is a pseudo solid?

Question # 2

The gases can be converted into liquids by

Question # 3

Which of the following liquids has low vapor pressure at 25°C:

Question # 4

Chloroform and acetone are soluble in each other due to:

Question # 5

A liquid on evaporation causes:

Question # 6

H2S is a gas which H2O is liquid at room temperature. it is due to

Question # 7

Polypeptide chains are coiled about one another into a spiral by

Question # 8

Hydrogen bonding is present in one of the following pairs:

Question # 9

At sea level and at 100°C the vapor pressure of water in an open system is:

Question # 10

HF has exceptionally low acidic strengths due to

Question # 11

Force of attraction b/w atoms of He is :

Question # 12

HF has exceptionally low acidic strength due to:

Question # 13

London dispersion forces are alos called:

Question # 14

The only forces are London dispersion forces among the

Question # 15

]Which of the following is a pseudo solid?

Question # 16

Which one of the following is weakest inter molecular force?

Question # 17

Amorphous solids

Question # 18

Debye forces are present in one of the following pairs

Question # 19

H2S is a gas while H2O is a liquid at room temperature. It is due to:

Question # 20

Hydrocarbon molecules with large chain lengths experience

Question # 21

Which of the following liquids has low vapour pressure at 25°C:

Question # 22

Rate of evaporation and rate of condensation at equilibrium

Question # 23

The inter-molecular forces in liquids are:

Question # 24

London dispersion forces are also called:

Question # 25

The intermolecular forces in liquids are

Question # 26

Which one of the following is the weakest intermolecular force

Question # 27

Force of attraction between atoms of He is

Question # 28

The gases can be converted into liquids by:

Question # 29

Trend of boiling point of halogens from fluorine to Iodine is that it

Question # 30

The strongest forces are

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ECAT Chemistry Chapter 4 Important MCQ's

Sr.# Question Answer
1 Rate of evaporation and rate of condensation at equilibrium
A. Become very low
B. Become very high
C. Become equal
D. Can never be equal
2 Escape of high energy molecules from the surface of a liquid is called
A. Sublimation
B. Distillation
C. Condensation
D. Evaporation
3 Which of the following is a pseudo solid
A. CaF2
B. Glass
C. NaCl
D. All
4 A liquid on evaporation causes
A. Heating effect
B. Cooling effect
C. Suffication
D. All of above
5 Diamond is a bad conductor because
A. It has a tight structure
B. It has a high density
C. there is no free electron present in the crystal of diamond of conduct electicity
D. Is transparent to light
6 Diamond is a bad conductor because:
A. Ithas tight structure
B. It has a high density
C. There is no free electron present in the crystal of diamond of conduct electricity is transparent to light
7 Evaporation of water is possible at:
A. Above 100°C
B. 0°C
C. 100°C
D. At all temperature
8 Which one of the following is weakest inter molecular force?
A. Dipole induced dipole forces
B. Ionic dipole forces
C. Electrostatic forces b/w ions
D. Dipole dipole forces
9 Amorphous solids:
A. Have a sharp melting point
B. Undergo clean cleavage when cut with knife
C. Have a perfect arrangement of atoms
D. Can possesses small regions of orderly arrangement of atoms
10 The gases can be converted into liquids by:
A. Increasing the pressure only.
B. Lowering temperature and increasing pressure
C. Increasing pressure and bringing temperature below critical points
D. Lowering temperature only

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