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

The gases can be converted into liquids by:

Question # 2

Diamond is a bad conductor because:

Question # 3

Rate of evaporation and rate of condensation at equilibrium:

Question # 4

Evaporation of water is possible at

Question # 5

London dispersion forces are also called

Question # 6

The intermolecular forces in liquids are

Question # 7

The molecules of CO2 in dry ice from the :

Question # 8

Evaporation of water is possible at:

Question # 9

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

Question # 10

The strongest forces are

Question # 11

Hydrocarbon molecule with large chain lengths experience:

Question # 12

HF has exceptionally low acidic strength due to:

Question # 13

Which one of the following is the weakest intermolecular force

Question # 14

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

Question # 15

A liquid on evaporation causes:

Question # 16

The strongest forces are:

Question # 17

Which one of the following is weakest inter molecular force?

Question # 18

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

Question # 19

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

Question # 20

HF has exceptionally low acidic strengths due to

Question # 21

Debye forces are present in one of the following pairs

Question # 22

Force of attraction between atoms of He is

Question # 23

Amorphous solids:

Question # 24

Hydrocarbon molecules with large chain lengths experience

Question # 25

Diamond is a bad conductor because

Question # 26

Polypeptide chains are coiled about one another into a spiral by

Question # 27

Hydrogen bonding is present in one of the following pairs:

Question # 28

Hydrogen bonding is present between the molecules of

Question # 29

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

Question # 30

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

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ECAT Chemistry Chapter 4 Important MCQ's

Sr.# Question Answer
1 The intermolecular forces in liquids are
A. Negligible
B. Very weak
C. Very strong
D. Reasonably strong
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 Which of the following is a pseudo solid
A. CaF2
B. Glass
C. NaCl
D. All
4 In a group on going downward, polarizability generally
A. Decreases
B. Increases
C. Remains constant
D. Negligible
5 Hydrogen bonding is present between the molecules of
A. NH3
B. H2O
C. HF
D. All of above
6 The strongest forces are
A. Debye forces
B. London dispersion forces
C. Dipole-dipole attraction
D. Hydrogen
7

Which of the following is a pseudo solid?

A.

CaF2

B.

Glass

C.

NaCL

D.

All
8 Force of attraction between atoms of He is
A. London dispersion forces
B. Hydrogen bondign
C. Coordinate covalent bond
D. Covalent bond
9 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.
10 A liquid on evaporation causes
A. Heating effect
B. Cooling effect
C. Suffication
D. All of above

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