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

Debye forces are present in on of the following pairs:

Question # 2

The molecules of CO2 in dry ice from the :

Question # 3

Hydrocarbon molecule with large chain lengths experience:

Question # 4

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

Question # 5

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

Question # 6

Ionic solids are characterized by :

Question # 7

A liquid on evaporation causes

Question # 8

Hydrocarbon molecules with large chain lengths experience

Question # 9

Amorphous solids

Question # 10

Which of the following is a pseudo solid?

Question # 11

Chloroform and acetone are soluble in each other due to

Question # 12

The gases can be converted into liquids by:

Question # 13

The strongest forces are

Question # 14

The gases can be converted into liquids by

Question # 15

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

Question # 16

Diamond is a bad conductor because

Question # 17

Amorphous solids:

Question # 18

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

Question # 19

London dispersion forces are also called:

Question # 20

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

Question # 21

Hydrogen bonding is present in one of the following pairs:

Question # 22

The intermolecular forces in liquids are

Question # 23

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

Question # 24

The inter-molecular forces in liquids are:

Question # 25

London dispersion forces are alos called:

Question # 26

Debye forces are present in one of the following pairs

Question # 27

Evaporation of water is possible at

Question # 28

Force of attraction between atoms of He is

Question # 29

HF has exceptionally low acidic strengths due to

Question # 30

The strongest forces are:

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ECAT Chemistry Chapter 4 Important MCQ's

Sr.# Question Answer
1 Hydrocarbon molecules with large chain lengths experience
A. Weaker attractive forces
B. Stronger attractive forces
C. Repulsive forces
D. No attractive forces
2 A liquid on evaporation causes:
A. Heating effect.
B. Cooling effect.
C. Suffocation .
D. All of above
3 Escape of high energy molecules from the surface of a liquid is called
A. Sublimation
B. Distillation
C. Condensation
D. Evaporation
4 Escape of high energy molecules from the surface of liquid is called:
A. Sublimation.
B. Distillation.
C. Condensation.
D. Evaporation.
5 H2S is a gas while H2O is a liquid at room temperature. It is due to:
A. Less inter-molecular forces in water.
B. Covalent bonding H-O in water molecule.
C. Hydrogen bonding in water molecules
D. Ionic character in water molecules
6 At sea level and at 1000C the vapour pressure of water in an open system is
A. 1000 mm Hg
B. 760 mm Hg
C. 730 mm Hg
D. 670 mm Hg
7 Evaporation of water is possible at:
A. Above 100°C
B. 0°C
C. 100°C
D. At all temperature
8 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
9 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
10 The boiling point of NH3 is maximum among the hydrides of group V elementsdue to:
A. Enhanced electronegative character of Nitrogen
B. Pyramidal structure of NH3
C. Very small size of Nitrogen.
D. Enhanced electropositive character of Nitrogen

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