Question # 1

The simplest of these has formula:

Choose an answer

C60

C10

V20

C30

The escape of gaseous molecules one by one is called ____________.

Choose an answer

Diffusion

Effusion

A & b

Nil

At ____________ °C water converts to ice.

Choose an answer

101°

100°

99°C

100.2°C

Bucky balls was discovered in ________________

Choose an answer

1965

1975

1985

1995

The forces of attraction present between the molecules of a substance are called ____________ forces.

Choose an answer

Intermolecular forces

Covalent

Ionic

Nil

The vapour pressure of a liquid increase with the:

Choose an answer

increase pressure

increase of temperature

increase of intermolecular forces

increase of polarity of molecules

How many time liquids are denser than gases?

Choose an answer

100 times

1000 times

10,000 times

100,000 times

Solid particles possess which one of the following motions?

Choose an answer

rotational motions

vibrational motions

translation motions

both translational and vibrational motions

Graphite is ___________

Choose an answer

Hard

Nil

Soft

Nil

Es is symbol of :

Choose an answer

Erbium

Einsteinium

Europium

Fremium

Diamonds exists in ____________ form.

Choose an answer

Cubic

Linear

Circular

Nil

Which one of the following does not affect the boiling point?

Choose an answer

intermolecular forces

external pressure

nature of liquid

initial temperature of liquid

The SI unit of pressure is:

Choose an answer

N

N/m²

Pascal

atm

More Classes

Other Links

Chemistry 9th Class English Medium Unit 5 Online Test MCQs With Answers

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer