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

Chloroform and acetone are soluble in each other due to

Question # 2

The boiling point of NH3 is maximum among the hydrides of group V elementsdue to:

Question # 3

London dispersion forces are also called

Question # 4

London dispersion forces are also called:

Question # 5

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

Question # 6

Diamond is a bad conductor because:

Question # 7

Rate of evaporation and rate of condensation at equilibrium:

Question # 8

Which one of the following is the weakest intermolecular force

Question # 9

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

Question # 10

Hydrocarbon molecule with large chain lengths experience:

Question # 11

HF has exceptionally low acidic strength due to:

Question # 12

Rate of evaporation and rate of condensation at equilibrium

Question # 13

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

Question # 14

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

Question # 15

Debye forces are present in one of the following pairs

Question # 16

The strongest forces are

Question # 17

HF has exceptionally low acidic strengths due to

Question # 18

Evaporation of water is possible at:

Question # 19

In a group on going downward, polarizability generally:

Question # 20

]Which of the following is a pseudo solid?

Question # 21

Which one of the following is weakest inter molecular force?

Question # 22

The molecules of CO2in dry ice from the

Question # 23

Hydrogen bonding is present between the molecules of

Question # 24

Ionic solids are characterized by :

Question # 25

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

Question # 26

The inter-molecular forces in liquids are:

Question # 27

Which of the following is a pseudo solid?

Question # 28

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

Question # 29

Which of the following is a pseudo solid

Question # 30

Evaporation of water is possible at

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ECAT Chemistry Chapter 4 Important MCQ's

Sr.# Question Answer
1 Heat of vapourization for liquids with strong dipole-dipole forces will have
A. Negligible Values
B. Reasonably high values
C. Very high values
D. very low values
2 HF has exceptionally low acidic strength due to:
A. Smaller size of fluorine.
B. Stronger polar bond between H and F.
C. Electronegativity of fluorine
D. Strong hydrogen bonding
3 Amorphous solids
A. Have sharp melting point
B. Undergo clean cleavage when cut with knife
C. Have perfect arrangement of atoms
D. Can possesses small regions of orderly arrangement of atoms
4 Debye forces are present in on of the following pairs:
A. Na+ion and water
B. Argon and water
C. Argon and Na+ion
D. Ne and water
5 Force of attraction between atoms of He is
A. London dispersion forces
B. Hydrogen bondign
C. Coordinate covalent bond
D. Covalent bond
6 In a group on going downward, polarizability generally:
A. Decreases
B. Increases
C. Remain constant
D. Negligible
7 Chloroform and acetone are soluble in each other due to:
A. Instantaneous dipole interactions.
B. Dipole-dipole interactions.
C. Inter molecular hydrogen bonding.
D. All of above
8 ]Which of the following is a pseudo solid?

A. Atoms of He is gaseous stat at high temperate.
B. Molecules of water in liquid state.
C. Molecules of solid l2
D. Molecular of hydrochloric acid gas
9 In a group on going downward, polarizability generally
A. Decreases
B. Increases
C. Remains constant
D. Negligible
10 Which of the following liquids has low vapor pressure at 25°C:
A. Diethyl ether
B. Acetone.
C. Water.
D. Ethyl alcohol.

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