Ethanol {H₂SO₄, 413 K} {diethyl ether}. The above reaction is which type?

Correct Answer is : Substitution nucleophilic bimolecular (SN2)(S_N2)(SN2)

Substitution nucleophilic bimolecular (S_N2)

Substitution electrophilic bimolecular (S_E2)

Substitution nucleophilic unimolecular (S_N1)

Substitution electrophilic unimolecular (S_E1)

Correct Answer is : Substitution nucleophilic bimolecular (SN2)(S_N2)(SN2)

Test Index

GUJCET 2025 Chemistry Paper

Question : 20 of 40

Marks: +1, -0

Ethanol \xrightarrow{H_2SO_4, 413 K} \text{diethyl ether}

. The above reaction is which type?

Solution:

Concept:

The reaction is acid-catalysed intermolecular dehydration of ethanol to form diethyl ether.

Explanation:

Concentrated

\mathrm{H}_2\mathrm{SO}_4

protonates ethanol.

A second ethanol molecule then acts as a nucleophile.

It attacks the protonated ethanol and displaces water.

Two molecules take part in the rate-determining step.

So, the reaction follows a bimolecular nucleophilic substitution mechanism,

(\mathrm{S_N2})

Answer:

Option A: Substitution nucleophilic bimolecular

(\mathrm{S_N2})

is correct.

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