NEET UG CHEMISTRY MCQ: ALCOHOLS & PHENOLS & ETHERS

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Analyzing +4 | -1

How many substituent will increase the acidity of alchol?

-\mathrm{NO}_2,-\mathrm{CH}_3,-\mathrm{O}-\mathrm{CH}_3,-\mathrm{Br},-\mathrm{CHO}

View answer and explanation

Correct option: A

Option A (3) is correct because electron-withdrawing groups like

-\mathrm{NO}_2

-\mathrm{Br}

, and

-\mathrm{CHO}

increase acidity.

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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}