${\mathrm{CaOCl}}_2$ is known as bleaching powder.

${\mathrm{CHCl}}_3$ is known as chloroform.

${\text{CaOCl}}_2+{\text{H}}_2\text{O}\to \text{Ca}{\left(\text{OH}\right)}_2+{\text{Cl}}_2$
$\underset{\stackrel{|}{{\text{CH}}_3}}{\overset{\underset{|}{{\text{CH}}_3}}{\text{C}}}=\text{O}+3{\text{Cl}}_2\to \underset{\stackrel{|}{{\text{CH}}_3}}{\overset{\underset{|}{{\text{CCl}}_3}}{\text{C}}}=\text{O}+3\text{HCl}$
$2\underset{\stackrel{|}{{\text{CH}}_3}}{\overset{\underset{|}{{\text{CCl}}_3}}{\text{C}}}=\text{O}+\text{Ca}{\left(\text{OH}\right)}_2\to \underset{\stackrel{|}{{\text{CH}}_3\text{COO}}}{\overset{\underset{|}{{\text{CH}}_3\text{COO}}}{\text{Ca}}}+2{\text{CHCl}}_3$