Question

On long standing the bleaching powder undergoes auto-oxidation. The products formed are

• A. Calcium chloride only
• B. Calcium chlorate only
• C. Calcium chloride and calcium chlorate
• D. Calcium chloride and calcium chlorite

Answer 1

Answer: (C)

Calcium chloride and calcium chlorate

Answer 2

On long standing bleaching powder undergoes auto-oxidation to form calcium chloride, $CaCl _{2}$ and calcium chlorate $Ca \left( ClO _{3}\right)_{2}$. Following reaction takes place: $\underset{\text{Bleaching powder}}{6 CaOCl _{2}} \longrightarrow \underset{\text{Calcium chlorate}}{Ca \left( ClO _{3}\right)_{2}} + \underset{\text{Calcium chloride}}{5 CaCl _{2}}$