Based on the following reaction.

Which of the following statements are correct about the mechanism of this reaction?

(i) A carbocation will be formed as an intermediate in the reaction.

(ii) OH–will attach the substrate (b) from one side and Cl- will leave it simultaneously from the other side.

(iii) An unstable intermediate will be formed in which OH– and Cl– will be attached by weak bonds.

(iv) The reaction proceeds through an SN₁ mechanism.

<p><span data-teams="true">This is a multiple choice answer as classified in NCERT Exemplar</span></p><p>Because it is a tertiary alkyl halide, the described reaction is a nucleophilic substitution that follows the <strong>S_N¹</strong> mechanism. It's a two-step process. The first step is the gradual breaking of a polarised <strong>C-Br</strong> bond, which results in the formation of a carbocation and a bromide ion. To complete the substitution, the stable intermediate carbocation is attacked by the nucleophile <strong>OH⁻</strong>. (i) and (iv) are the right statements.</p><p><strong>Correct Answer:</strong> option (A) and (iv)</p>

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