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NEETChemistryHydrocarbons

What is the name of the reagent used in sulphonation to replace a hydrogen atom in a ring with a sulphonic acid group?

Options

  1. AOleum
  2. BSodium hydroxide
  3. CHydrochloric acid
  4. DBenzene

Correct answer

A. Oleum

Step-by-step solution

Sulphonation is carried out by heating benzene with fuming sulphuric acid, which is commonly known as oleum.

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