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 strongest forces are

Question # 2

Which of the following is a pseudo solid

Question # 3

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

Question # 4

Hydrogen bonding is present between the molecules of

Question # 5

Force of attraction b/w atoms of He is :

Question # 6

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

Question # 7

The gases can be converted into liquids by

Question # 8

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

Question # 9

Hydrocarbon molecules with large chain lengths experience

Question # 10

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

Question # 11

Evaporation of water is possible at:

Question # 12

Ionic Solids are characterized by

Question # 13

Which one of the following is the weakest intermolecular force

Question # 14

A liquid on evaporation causes

Question # 15

The inter-molecular forces in liquids are:

Question # 16

The molecules of CO2 in dry ice from the :

Question # 17

Debye forces are present in one of the following pairs

Question # 18

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

Question # 19

Chloroform and acetone are soluble in each other due to:

Question # 20

The only forces are London dispersion forces among the

Question # 21

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

Question # 22

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

Question # 23

Amorphous solids:

Question # 24

The gases can be converted into liquids by:

Question # 25

Rate of evaporation and rate of condensation at equilibrium

Question # 26

The boiling point of NH3 is maximum among the hydrides of group V elementsdue to:

Question # 27

Amorphous solids

Question # 28

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

Question # 29

Ionic solids are characterized by :

Question # 30

The intermolecular forces in liquids are

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ECAT Chemistry Chapter 4 Important MCQ's

Sr.# Question Answer
1 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
2 Evaporation of water is possible at
A. Above 1000
B. 00
C. 1000
D. At all temperature
3 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
4 Which of the following liquids has low vapor pressure at 25°C:
A. Diethyl ether
B. Acetone.
C. Water.
D. Ethyl alcohol.
5 Hydrogen bonding is present in one of the following pairs:
A. NH3
B. H2O
C. HF
D. All of above
6 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
7 Debye forces are present in on of the following pairs:
A. Na+ion and water
B. Argon and water
C. Argon and Na+ion
D. Ne and water
8 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
9 Which one of the following is the weakest intermolecular force
A. Dipole induced dipole forces
B. Ionic dipole forces
C. Electrostatics forces between ions
D. Dipole-dipole forces
10 A liquid on evaporation causes:
A. Heating effect.
B. Cooling effect.
C. Suffocation .
D. All of above

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