NEET UG CHEMISTRY MCQ: ALCOHOLS & PHENOLS & ETHERS

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Analyzing +4 | -1

Assertion: Anisole reacts with

HI

to give phenol and chloromethane.

Reason: The

-OCH_3

group in anisole enriches the electron density in the ring through Resonance.

View answer and explanation

Correct option: B

Both assertion and reason are correct statements, but reason is not the correct explanation of the assertion.

Option B is correct because both the assertion and reason are correct, but the reason (resonance) doesn't directly explain why anisole reacts with HI to give phenol and methyl iodide (not chloromethane). The reaction proceeds via cleavage of the ether bond by HI.

More Questions from ALCOHOLS & PHENOLS & ETHERS

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Ethers are made free from peroxide linkage on distilling impure sample with: The product 'B' in the following reaction is

{\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}}

Fenton’s reagent is: Assertion:- Isopropyl benzene reacts with

\mathrm{O}_2

and acid gives phenol.

Reason:- Initially isopropyl benzene converts into 2-phenyl propan-2-ol. When an ether is treated with

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

we get: Physical properties of: