RRB GROUP D Chemistry Quiz- I

Question 1:

The smell of food being cooked reaches us even from a considerable distance by the process of

Diffusion

Surface tension

Evaporation

Sublimation

Question 2:

Sodium metal should be stored in

Alcohol

Kerosene oil

Hydrochloric acid

Water

Question 3:

The oxidation state of carbon in calcium carbide is

-1

+4

-2

+3

Question 4:

Which one of the following is a cause of acids rain ?

Sulphur dioxide
Carbon monoxide
Nitrogen dioxide
Ammonia

Both 1 and 3

Only 3

Only 1

Both 2 and 2

Question 5:

Which of the following glass contains borax and silica ?

Flint glass

Potash glass

Pyrex glass

Photochromatic glass

Question 6:

Which of the following is correct for Boyle’s law?

At constant pressure , pressure of a gas varies inversely with volume

At constant temperature , pressure of a gas varies inversely with volume

At constant volume , pressure of a gas varies inversely with volume

At constant pressure , temperature of a gas varies inversely with volume

Question 7:

Which property of metals is used for making bells?

Sonorousness

Malleability

Ductility

Conductivity

Question 8:

Which of the following statement is incorrect about heavy water?

It contains more number of hydrogen atoms

It contain deuterium in place of hydrogen

It contains more number of oxygen atoms

Both 1 and 3

Question 9:

The example of oligosaccharide is

Sucrose

Glucose

Ribose

Cellulose

Question 10:

Which of the following is used to make pencil leads and black paints ?

Diamond

Graphite

Fullerene

All of the above