Which one of the following is present as an active ingredient in bleaching powder for bleaching action?

Which one of the following is present as an active ingredient in bleaching powder for bleaching action?
  1. $\mathrm{Ca}(\mathrm{OCl})_2$
  2. $\mathrm{CaO}_2 \mathrm{Cl}$
  3. $\mathrm{CaCl}_2$
  4. $\mathrm{CaOCl}_2$

Solution

$\mathrm{Ca}(\mathrm{OCl})_2$, calcium hypochlorite is the active ingredient in beleaching powder which releases chlorine.

Asked in: NEET 2011 (Screening)

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