Lead chamber process is the method for the preparation of

When Zinc Sulphate reacts with hydrogen sulphide, a white precipitate formed is

The gas which has the smell of rotten eggs

The apparatus used for the preparation of hydrogen sulphide is

The gas formed when hydrogen sulphide is burnt in excess of oxygen

The bleaching action of sulphurdioxide is

Gun powder is a mixture of sulphur, charcoal and

The chemical used for skin diseases