Question : What is the chemical name of 'baking soda'?

Option 1: Sodium carbonate

Option 2: Sodium bicarbonate

Option 3: Sodium nitrite

Option 4: Sodium nitrate

Question : Chile saltpetre is the common name of

Option 1: Sodium Nitrate

Option 2: Potassium Nitrite

Option 3: Potassium Nitrate

Option 4: Sodium Nitrite

Question : The chemical name "Hypo", commonly used in photography is:

Option 1: Sodium Thiosulphate

Option 2: Silver Nitrate

Option 3: Sodium Nitrate

Option 4: Silver Iodide