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

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

Question # 2

The density of water decreases, When it is freezed at 0°C

Question # 3

Which of the following is a pseudo solid?

Question # 4

The gases can be converted into liquids by:

Question # 5

Hydrogen bonding is present between the molecules of

Question # 6

Force of attraction between atoms of He is

Question # 7

HF has exceptionally low acidic strengths due to

Question # 8

Hydrocarbon molecules with large chain lengths experience

Question # 9

Which of the following liquids has low vapour pressure at 250C

Question # 10

Evaporation of water is possible at:

Question # 11

The molecules of CO2 in dry ice from the :

Question # 12

Escape of high energy molecules from the surface of a liquid is called

Question # 13

Amorphous solids:

Question # 14

The gases can be converted into liquids by

Question # 15

The boiling point of NH3is maximum among the hydrides of group V elements due to

Question # 16

The strongest forces are

Question # 17

The strongest forces are:

Question # 18

Chloroform and acetone are soluble in each other due to:

Question # 19

A liquid on evaporation causes:

Question # 20

In a group on going downward, polarizability generally:

Question # 21

The molecules of CO2in dry ice from the

Question # 22

Polypeptide chains are coiled about one another into a spiral by

Question # 23

At sea level and at 1000C the vapour pressure of water in an open system is

Question # 24

Amorphous solids

Question # 25

Which of the following is a pseudo solid

Question # 26

Polypeptide chains are coiled about one another into a spiral by:

Question # 27

Force of attraction b/w atoms of He is :

Question # 28

Which one of the following is the weakest intermolecular force

Question # 29

The density of water decreases, when it is freezed at 0oC because of

Question # 30

Debye forces are present in one of the following pairs

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ECAT Chemistry Chapter 4 Important MCQ's

Sr.# Question Answer
1 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
2 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
3 Polypeptide chains are coiled about one another into a spiral by:
A. Ionic bonds
B. Covalent bonds
C. Van der Waal's forces
D. Hydrogen bonds
4 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 point
D. Lowering temperature only
5 Ionic solids are characterized by :
A. Low meeting points
B. Good conductivity in solid state
C. High vapor pressure
D. Solubility in polar solvents
6 The strongest forces are:
A. Debye froces
B. London dispersion
C. Dipole-dipole attraction
D. Hydrogen bonding
7 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.
8 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
9 Which of the following liquids has low vapour pressure at 25°C:
A. Diethyl ether
B. Acetone.
C. Water.
D. Ethyl alcohol.
10 Hydrocarbon molecule with large chain lengths experience:
A. Weaker attractive forces
B. Stronger attractive forces
C. Repulsive forces
D. No attractive forces

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