Bleaching powder can be obtained by which of the following reactions?

Bleaching powder can be obtained by which of the following reactions?
  1. $\mathrm{Mg}(\mathrm{OH})_2+\mathrm{F}_2 \xrightarrow{\Delta} \mathrm{MgOF}_2+\mathrm{H}_2 \mathrm{O}$
  2. $\mathrm{Ca}(\mathrm{OH})_2+\mathrm{Cl}_2 \xrightarrow{\Delta} \mathrm{CaOCl}_2+\mathrm{H}_2 \mathrm{O}$
  3. $\mathrm{Ba}(\mathrm{OH})_2+\mathrm{Br}_2 \xrightarrow{\Delta} \mathrm{BaOBr}_2+\mathrm{H}_2 \mathrm{O}$
  4. $\mathrm{Ca}(\mathrm{OH})_2+\mathrm{F}_2 \xrightarrow{\Delta} \mathrm{CaOF}_2+\mathrm{H}_2 \mathrm{O}$

Solution

The chemical formula of bleaching powder is $\mathrm{CaOCl}_2$, so the correct reaction is $\mathrm{Ca}(\mathrm{OH})_2+\mathrm{Cl}_2 \stackrel{\Delta}{\longrightarrow} \mathrm{CaOCl}_2+\mathrm{H}_2 \mathrm{O}$

Asked in: AP EAMCET 2021 (24 Aug Shift 2)

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