Question

Name the products formed when hot and concentrated sulphuric acid reacts with the following:

(a) Sulphur (b) NaOH,

(c) Sugar (d) Carbon

(e) Copper.

Answer 1

(a) When sulphuric acid reacts with sulphur the product formed is Sulphur dioxide is formed.

S + 2H₂SO₄ → 3SO₂ + 2H₂O

(b) When sulphuric acid reacts with sodium hydroxide it neutralizes base to form sodium sulphate.

2NaOH + H₂SO₄ → Na₂SO₄ + 2H₂O

(c) When sulphuric acid reacts with sugar it forms carbon

(d) When sulphuric acid reacts with carbon it forms carbon dioxide and sulphur dioxide gas.

(e) When sulphuric acid reacts with copper it forms copper sulphate and sulphur dioxide