Question

Chlorine water loses its yellow colour on standing because ______.

Options

• HCl gas is produced, due to the action of sunlight.

• A mixture of HOCl and HCl is produced in the presence of light.

• HOCl and hydrogen gas is produced.

• A mixture of HCl and ClO3 is produced, due to the action of sunlight.

Answer 1

Chlorine water loses its yellow colour on standing because a mixture of HOCl and HCl is produced in the presence of light.

Explanation:

\[\ce{Cl_{2(g)} + H2O (l) -> HCl (g) + HOCl(aq)}\]