Intermolecular force of attraction is maximum in ___________

1

(a)

solids

(b)

liquids

(c)

gases 

(d)

plasma particles.

Which of the following substances is not a solid?

1

(a)

Butter

(b)

Glass

(c)

Sponge

(d)

Rubber band.

Which one of the following properties is not characteristic of liquids?

1

(a)

Fluidity

(b)

Definite shape

(c)

Definite volume

(d)

Compressibility.

Gases do not have ________

1

(a)

high compressibility

(b)

high fluidity

(c)

high density

(d)

large volume.

Evaporation of a material takes place __________

1

(a)

above its boiling point

(b)

above its melting point

(c)

below its boiling point  

(d)

below its melting point.

Particles of a liquid  _________

1

(a)

are most ordered

(b)

move randomly

(c)

have large intermolecular spaces

(d)

can slip and slid over each other.

The fluorescent tubes and neon sign bulbs glow because of ___________

1

(a)

presence of charged particles

(b)

high density of gases

(c)

high temperature

(d)

high applied voltage.

Which of the following processing does not convert a liquid into vapours?

1

(a)

Boiling 

(b)

Heating

(c)

Evaporation

(d)

Condensation.

Which of the following decreases the rate of evaporation?

1

(a)

Surface area

(b)

Humidity

(c)

Temperature

(d)

Wind.

Gases can be easily compressed because these have least intermolecular interactions_________

1

(a)

assertion is correct and reason is correct

(b)

assertion is correct and reason is wrong 

(c)

assertion is wrong and reason is correct

(d)

assertion is wrong and reason is wrong.

A material in liquid state can have any ___________

1

(a)

shape

A material in gaseous state can fill any _________

1

(a)

container/vessel/volume

The intermixing of particles of two substances on their own is known as __________

1

(a)

diffusion

The mass per unit volume of a substance is called __________

1

(a)

density

The energy possessed by a particle by virtue of its motion is called __________ energy.

1

(a)

kinetic

Why is ice at 273 K more effective in cooling than water at the same temperature?

1

(a)