Acidic oxide is 

Formula of hydrogen peroxide is 

Formula of Potassium permanganate is 

The catalyst used for hydrogenation of oils is 

Boiling point of water on Celsius scale is 

The substance used as water softener is

Metal reacts with hydrogen to form

Water in the form of crystal is called

The ratio in which hydrogen and oxygen are present in water by volume is 

Scientist who manufactured synthetic petrol is