Chemistry MCQs

Question 1

Rock salt is a mineral containing

Accepted Answer

Sodium

Answer

Potassium

Answer

Magnesium

Answer

Iron

Question 2

Baking soda is :

Accepted Answer

Sodium bicarbonate

Answer

Potassium carbonate

Answer

Sodium hydroxide

Answer

Sodium carbonate

Question 3

Sodium Carbonate is commonly known as

Accepted Answer

Washing Soda

Answer

Baking Soda

Answer

Caustic Soda

Answer

Caustic Potash

Question 4

Brine refers to :

Accepted Answer

Salt water

Answer

Sweet water

Answer

Pure water

Answer

Starch water

Question 5

The chemical name of baking soda is

Accepted Answer

Sodium bicarbonate

Answer

Sodium carbonate

Answer

Sodium chloride

Answer

Sodium nitrate

Question 6

Chemical name of common salt is

Accepted Answer

Sodium Chloride

Answer

Sodium Bicarbonate

Answer

Sodium

Answer

Sodium Oxide

Question 7

Nitrogen forms a variety of compounds in all oxidation states ranging from

Accepted Answer

–3 to +5

Answer

–3 to +3

Answer

–3 to +4

Answer

–3 to +6

Question 8

What is the covalency of nitrogen in ammonia molecule

Accepted Answer

3

Answer

2

Answer

4

Answer

5

Question 9

What is 'milk of magnesia' chemically?

Accepted Answer

Magnesium hydroxide

Answer

Magnesium carbonate

Answer

Sodium bicarbonate

Answer

Calcium hydroxide