Question : The chemical name of 'common salt' is

Option 1: Sodium chloride

Option 2: Sodium nitrate

Option 3: Ammonium chloride

Option 4: Calcium chloride

Question : Which mineral salt is dissolved in a major amount in ocean water?

Option 1: Calcium chloride

Option 2: Calcium carbonate

Option 3: Sodium chloride

Option 4: Calcium sulphate

Question : The main components of liquid bleach are:

Option 1: Sodium Chloride

Option 2: Sodium Hypochlorite

Option 3: Hydrochloric Acid

Option 4: Sodium Thiosulphate

Question : Carborundum is another name of

Option 1: Silicon Carbide

Option 2: Silicon Oxide

Option 3: Calcium Carbide

Option 4: Calcium Oxide

Question : The metallic contituents of hard water are:

Option 1: Magnesium calcium and tin

Option 2: Iron ,tin and calcium

Option 3: Calcium ,magnesium and iron

Option 4: Magnesium ,tin and iron