Question

Example of mixed salt is:

• A. common salt
• B. bleaching powder
• C. barium chloride
• D. calcium chloride

Answer 1

Answer: (B)

bleaching powder

Example of mixed salt is bleaching powder.
more than one cation or an ion other than hydrogen ($H^{+}$) or hydride ($H^{-}$) ions. Bleaching powder, $CaOC{l}_2$, is a mixed salt since though it contains only one cation ($C{a}^{2+}$), it also contains two anions $C{l}^{-}$ and $OC{l}^{-}$.
Bleaching powder is a yellowish white powder prepared by passing chlorine gas over dry slaked lime.
$Ca(OH{)}_2+C{l}_2\to CaOC{l}_2+H_{2}O$
Bleaching powder or calcium oxychloride is mainly used in the textile industry for bleaching cotton and linen and in the paper industry to bleach wood pulp. It is also used in the manufacture of chloroform and for disinfection of water, and also as an oxidizing agent in the laboratory.