Water gas is a combination of hydrogen and 

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

Basic oxide is 

Scientist who manufactured synthetic petrol is

Acidic oxide is 

The process of decomposing water into its elements by passing electricity is called 

The Scientist who prepared oxygen first in the laboratory is

Formula of Potassium permanganate is 

Metal reacts with hydrogen to form

The substance used as water softener is