Question

Which of the following process does not occur during the formation of $CH{Cl}_3$ from $C_2{H}_{5}OH$ and $CaO{Cl}_2$?

• A. Hydrolysis
• B. Oxidation
• C. Reduction
• D. Chlorination

Answer 1

Answer: (C)

The correct option is C Reduction
Chloroform is prepared in the laboratory by heating a mixture of bleaching powder $\left(CaC{l}_2\right)$ with ethanol. In this reaction bleaching powder acts as an oxidising, chlorinating and hydrolysing agent.

$C{H}_{3}C{H}_{2}OH+\left[O\right]⟶C{H}_{3}CHO+H_{2}O⟶$ Oxidation

$C{H}_{3}CHO+3C{l}_2⟶CC{l}_{3}CHO+3HCl⟶$ Chlorination

$2CC{l}_{3}CHO+Ca{\left(OH\right)}_2⟶2CHC{l}_3+Ca{\left(COOH\right)}_2⟶$ Hydrolysis