Question

What is observed when hot concentrated sulphuric acid is added to sulphur?

Answer 1

Here,
Hot and concentrated sulphuric acid oxidises sulphur to sulphur dioxide . So the yellow colour sulphur changes into pungent odour SO2

S + 2 H2SO4 ----> 3SO2 + 2 H2O

Answer 2

Heya !!

Here is your answer..

The following reaction occurs when hot concentrated sulphuric acid is added to sulphur.

S + H2SO4 = SO2 + H2O

• Sulphuric acid oxidize sulphur to sulphur dioxide.

• Also, a pungent smell comes out.

Hope it helps..