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JEE Main · 2023 · 01 Feb 2023 · Shift 2 · Haloalkanes and Haloarenes

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The graph which represents the following reaction is :
  1. (A)(see structure)
  2. (B)(see structure)
  3. (C)(see structure)
    ✓ Correct
  4. (D)(see structure)

Answer: (C)

Solution

Triphenylmethyl chloride ionises readily because the carbocation formed is stabilised by three phenyl rings, so its conversion to the alcohol follows an path. The slow, rate-determining step is the unimolecular ionisation of the carbon–chlorine bond, which makes the rate first order in the substrate and independent of the hydroxide concentration. A plot of rate against the concentration of triphenylmethyl chloride is therefore a straight line through the origin, rising in direct proportion to that concentration.

JEE Main · 2023 · 01 Feb 2023 · Shift 2 · Single correct option

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