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AP EAMCET · Chemistry · Haloalkanes and Haloarenes

Identify the compound (B) in given reaction.
\(\mathrm{CH}_3 \mathrm{Cl} \xrightarrow{\mathrm{KCN}}(A) \xrightarrow{\mathrm{H}^{+} / \mathrm{H}_2 \mathrm{O}}(B)\)

  1. A \(\mathrm{CH}_3 \mathrm{NH}_2\)
  2. B \(\mathrm{HCOOH}\)
  3. C \(\mathrm{CH}_3 \mathrm{COOH}\)
  4. D \(\mathrm{CH}_3 \mathrm{COCH}_3\)
Verified Solution

Answer & Solution

Correct Answer

(C) \(\mathrm{CH}_3 \mathrm{COOH}\)

Step-by-step Solution

Detailed explanation

When chloromethane reacts with potassium cyanide, it will produce methyl cyanide (A) and potassium chloride. It is a nucleophilic substitution reaction in which cyanide ion will displace chloride ion. On further step, methyl cyanide gets hydrolysed and give acetic acid (B).