NEET UG CHEMISTRY MCQ: ALCOHOLS & PHENOLS & ETHERS

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Which of the ester shown, after reduction with

\mathrm{LiAlH}_4

and aqueous work up, will yield two molecules of only a single alcohol?

View answer and explanation

Correct option: C

\mathrm{C}_6 \mathrm{H}_5-\mathrm{CO}_2-\mathrm{CH}_2 \mathrm{C}_6 \mathrm{H}_5

Option C (

\mathrm{C}_6 \mathrm{H}_5-\mathrm{CO}_2-\mathrm{CH}_2 \mathrm{C}_6 \mathrm{H}_5

) is correct because the ester is derived from benzoic acid and benzyl alcohol, both of which will be reduced to benzyl alcohol upon treatment with

\mathrm{LiAlH}_4

followed by aqueous workup.

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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}