NEET UG CHEMISTRY MCQ: ALCOHOLS & PHENOLS & ETHERS

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Compound A reacts with

PC{l_5}

to produce B which on treatment with

KCN

following by hydrolysis produce propionic acid. Compound ‘A’ is

View answer and explanation

Correct option: A

{C_2}{H_5}OH

Option A (

{C_2}{H_5}OH

) is correct because ethanol reacts with

PCl_5

to form ethyl chloride, which reacts with KCN to form ethyl cyanide, which hydrolyzes to propionic acid.

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{\text{C}}{{\text{H}}_3}{\text{C}}{{\text{H}}_2}{\text{OH}}\xrightarrow{{{\text{PCC}}}}{\text{A}}\xrightarrow[{\left( {{\text{ii}}} \right){\text{ }}{{\text{H}}_2}{\text{O/}}{{\text{H}}^ + }}]{{\left( {\text{i}} \right){\text{ HCN}}}}{\text{B}}

\mathrm{O}_2

{\mathrm{P}_2}{\mathrm{S}_5}