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

In a group on going downward, polarizability generally:

Question # 2

Which of the following is a pseudo solid

Question # 3

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

Question # 4

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

Question # 5

In a group on going downward, polarizability generally

Question # 6

HF has exceptionally low acidic strength due to:

Question # 7

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

Question # 8

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

Question # 9

Rate of evaporation and rate of condensation at equilibrium:

Question # 10

London dispersion forces are alos called:

Question # 11

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

Question # 12

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

Question # 13

London dispersion forces are also called

Question # 14

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

Question # 15

Heat of vapourization for liquids with strong dipole-dipole forces will have

Question # 16

A liquid on evaporation causes:

Question # 17

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

Question # 18

Which one of the following is weakest inter molecular force?

Question # 19

Which of the following is a pseudo solid?

Question # 20

The only forces are London dispersion forces among the

Question # 21

Force of attraction between atoms of He is

Question # 22

Chloroform and acetone are soluble in each other due to:

Question # 23

Ionic solids are characterized by :

Question # 24

Hydrogen bonding is present in one of the following pairs:

Question # 25

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

Question # 26

The gases can be converted into liquids by:

Question # 27

Hydrocarbon molecules with large chain lengths experience

Question # 28

A liquid on evaporation causes

Question # 29

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

Question # 30

Diamond is a bad conductor because:

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ECAT Chemistry Chapter 4 Important MCQ's

Sr.# Question Answer
1 The molecules of CO2 in dry ice from the :
A. Ionic crystals
B. Coverlet crystals
C. Molecular crystals
D. Any type of crystals
2 Force of attraction b/w atoms of He is :
A. London dispersion forces
B. Hydrogen bonding
C. Coordinate covalent bond
D. Covalent bond
3 Hydrogen bonding is present in one of the following pairs:
A. NH3
B. H2O
C. HF
D. All of above
4 A liquid on evaporation causes
A. Heating effect
B. Cooling effect
C. Suffication
D. All of above
5 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
6 The molecules of CO2in dry ice from the
A. Ionic crystalls
B. Covalent crystals
C. Molecular crystals
D. Any type of crystal
7 Hydrocarbon molecules with large chain lengths experience
A. Weaker attractive forces
B. Stronger attractive forces
C. Repulsive forces
D. No attractive forces
8 H2S is a gas which H2O is liquid at room temperature. it is due to
A. Less intermolecular forces in water
B. Covalent bond in H-O in water molecule
C. Hydrogen bonding in water molecules
D. Ionic characters in water molecules
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 strongest forces are:
A. Debye froces
B. London dispersion
C. Dipole-dipole attraction
D. Hydrogen bonding

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