# $CHCl_3$ is known as

$\begin{array}{1 1}(a)\;Trichloro\;acitaldehyde&(b)\;Acetaldehyde\\(c)\;chloroform&(d)\;None\end{array}$

$2CCl_3CHO+Ca(OH)_2\rightarrow 2CHCl_3+CaCHCOOl_2$
Chloroform
Hence (c) is the correct answer.