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

00:00
Question # 1

The strongest forces are:

Question # 2

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

Question # 3

Amorphous solids:

Question # 4

A liquid on evaporation causes

Question # 5

Evaporation of water is possible at

Question # 6

The molecules of CO2in dry ice from the

Question # 7

Diamond is a bad conductor because:

Question # 8

In a group on going downward, polarizability generally:

Question # 9

Rate of evaporation and rate of condensation at equilibrium:

Question # 10

Debye forces are present in one of the following pairs

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

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

Question # 14

]Which of the following is a pseudo solid?

Question # 15

Ionic solids are characterized by :

Question # 16

Ionic Solids are characterized by

Question # 17

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

Question # 18

London dispersion forces are also called

Question # 19

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

Question # 20

Hydrogen bonding is present between the molecules of

Question # 21

The gases can be converted into liquids by

Question # 22

Which one of the following is weakest inter molecular force?

Question # 23

Force of attraction b/w atoms of He is :

Question # 24

HF has exceptionally low acidic strength due to:

Question # 25

Force of attraction between atoms of He is

Question # 26

The inter-molecular forces in liquids are:

Question # 27

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

Question # 28

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

Question # 29

Evaporation of water is possible at:

Question # 30

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

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ECAT Chemistry Chapter 4 Important MCQ's

Sr.# Question Answer
1 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
2 Escape of high energy molecules from the surface of liquid is called:
A. Sublimation.
B. Distillation.
C. Condensation.
D. Evaporation.
3 The density of water decreases, When it is freezed at 0°C
A. Change of bond length
B. Change of bond angles
C. Cubic structure of ice
D. Empty spaces present in the structure of ice
4 Hydrocarbon molecule with large chain lengths experience:
A. Weaker attractive forces
B. Stronger attractive forces
C. Repulsive forces
D. No attractive forces
5 Force of attraction b/w atoms of He is :
A. London dispersion forces
B. Hydrogen bonding
C. Coordinate covalent bond
D. Covalent bond
6 A liquid on evaporation causes:
A. Heating effect.
B. Cooling effect.
C. Suffocation .
D. All of above
7 Debye forces are present in one of the following pairs
A. Na+ion and water
B. Argon and water
C. Argon and Na+ion
D. Ne and Water
8 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
9 The boiling point of NH3is maximum among the hydrides of group V elements due to
A. Enhanced electronegative character of Nitrogen
B. Pyramidal structure of NH3
C. Very small size of Nitrogen
D. Enhanced electropositive character of Nitrogen
10 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

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