Question

NaOCl solution becomes unstable on warming. What happens to it?

Answer 1

1. It decomposes slowly.
2. Sodium hypochlorite breaks down into sodium chloride (NaCl) and sodium chlorate (NaClO₃).
3. The reaction releases oxygen gas.
4. This decomposition reduces the bleaching and disinfecting power of the solution.
5. Hence, NaOCl solutions should be stored in a cool place to maintain stability.