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NEET2010ChemistryHydrocarbonsActual

Assertion : Benzene on heating with conc. H ₂ SO ₄ gives benzenesulphonic acid which when heated with superheated steam under pressure gives benzene. Reason : Sulphonation is a reversible process.

Options

  1. AIf both assertion and reason are true and reason is the correct explanation of assertion
  2. BIf both assertion and reason are true but reason is not the correct explanation of assertion
  3. CIf assertion is true but reason is false
  4. DIf both assertion and reason are false.

Correct answer

A. If both assertion and reason are true and reason is the correct explanation of assertion

Step-by-step solution

Sulphonation of benzene is an electrophilic substitution reaction in which SO ₃ acts as the electrophile.

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