Alkyl halides are prepared from alcohols by treating with

(i) HCl + ZnCl₂

(ii) Redp+Br2

(iii) H₂SO₄ + KI

(iv) All the above

This is a multiple choice answer as classified in NCERT Exemplar

Alcohols produce matching alkyl halides when they are treated with various reagents. Alcohols, red phosphorous, and bromine treated with alcohol produce alkyl chlorides and alkyl bromide, respectively, when treated with HCl+ZnCl₂. H₂SO₄ + KI cannot be used to convert an alcohol to alkyl iodide because they will convert KI to the equivalent acid, HI, which will then be oxidised to I₂. As a result, the right statements are (i) and (ii).

Correct Answer: Option (i) and (ii)

<p><span data-teams="true">This is a multiple choice answer as classified in NCERT Exemplar</span></p><div><div><picture><img src="https://images.shiksha.com/mediadata/images/articles/1746524660php0qzhOd.jpeg" alt="" width="433" height="98"></picture></div><div>Alcohols produce matching alkyl halides when they are treated with various reagents. Alcohols, red phosphorous, and bromine treated with alcohol produce alkyl chlorides and alkyl bromide, respectively, when treated with <strong>HCl+ZnCl₂</strong>. <strong>H₂SO₄+ KI</strong> cannot be used to convert an alcohol to alkyl iodide because they will convert <strong>KI</strong> to the equivalent acid, <strong>HI</strong>, which will then be oxidised to <strong>I₂</strong>. As a result, the right statements are (i) and (ii).</div></div><p><strong>Correct Answer:</strong> Option (i) and (ii)</p>

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