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

Force of attraction between atoms of He is

Question # 3

Evaporation of water is possible at:

Question # 4

Polypeptide chains are coiled about one another into a spiral by

Question # 5

Debye forces are present in on of the following pairs:

Question # 6

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

Question # 7

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

Question # 8

Hydrogen bonding is present between the molecules of

Question # 9

Which one of the following is weakest inter molecular force?

Question # 10

A liquid on evaporation causes:

Question # 11

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

Question # 12

Force of attraction b/w atoms of He is :

Question # 13

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

Question # 14

Ionic Solids are characterized by

Question # 15

Which one of the following is the weakest intermolecular force

Question # 16

Which of the following is a pseudo solid?

Question # 17

Hydrocarbon molecule with large chain lengths experience:

Question # 18

The molecules of CO2in dry ice from the

Question # 19

The inter-molecular forces in liquids are:

Question # 20

London dispersion forces are also called

Question # 21

The molecules of CO2 in dry ice from the :

Question # 22

A liquid on evaporation causes

Question # 23

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

Question # 24

The strongest forces are:

Question # 25

The only forces are London dispersion forces among the

Question # 26

Chloroform and acetone are soluble in each other due to:

Question # 27

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

Question # 28

London dispersion forces are also called:

Question # 29

Hydrogen bonding is present in one of the following pairs:

Question # 30

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

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ECAT Chemistry Chapter 4 Important MCQ's

Sr.# Question Answer
1 London dispersion forces are also called:
A. Hydrogen bonding.
B. Debye forces
C. Van der Waal's forces
D. Instantaneous dipole-induced dipole forces.
2 Hydrocarbon molecule with large chain lengths experience:
A. Weaker attractive forces
B. Stronger attractive forces
C. Repulsive forces
D. No attractive forces
3 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.
4 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
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 The strongest forces are:
A. Debye froces
B. London dispersion
C. Dipole-dipole attraction
D. Hydrogen bonding
7 The molecules of CO2in dry ice from the
A. Ionic crystalls
B. Covalent crystals
C. Molecular crystals
D. Any type of crystal
8 The only forces are London dispersion forces among the
A. Atoms of He in gaseous state at high temperature
B. Molecules of water in liquid state
C. Molecules of solid I2
D. Molecular of hydrochloric acid gas
9 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
10 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

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