Name the products formed when hot and concentrated sulphuric acid reacts with the following :
(a) Sulphur, (b) NaOH, (c) Sugar,
(d) Carbon, (e) Copper.
A volatile acid X is formed when sodium chloride reacts with concentrated sulphuric acid. Name this volatile acid.
When zinc react with hot and concentrated NaOH, a colourless salt is formed. Name this colourless salt.