Question

Bleaching powder is represented by the formula

• A. ${\text{CaO.CaCl}}_{\text{2}}$
• B. ${\text{CaCl}}_2$
• C. ${\text{CaCl}}_{\text{2}}{\text{.CaCO}}_{\text{3}}$
• D. $\text{Ca(OCl)Cl}$

Answer 1

The correct option is D

$\text{Ca(OCl)Cl}$

Explanation:

Preparation of bleaching powder

• Bleaching powder is produced by the action of chlorine on dry slaked lime $\left[\mathrm{Ca}{\left(\mathrm{OH}\right)}_2\right]$.
• The reaction for the formation of bleaching powder is as follows:-
• $$\begin{gathered} {\text{Ca(OH)}}_{\text{2}}\left(\text{s}\right){\text{+Cl}}_{\text{2}}\left(\text{g}\right){\text{→ CaOCl}}_{\text{2}}\left(s\right){\text{+ H}}_{\text{2}}\text{O}\left(\text{l}\right) \\ \text{Calcium Hydroxide Chlorine Calcium Hypochlorite} \end{gathered}$$

Uses of bleaching powder

• It is used as an oxidizing agent in many chemical industries.
• It is also to make drinking water free from germs.

Bleaching powder is represented by the formula $\text{Ca(OCl)Cl}$.

Hence, the correct option is (D). Bleaching powder is represented by the formula $\text{Ca(OCl)Cl}$.