The sulphonic acid group is often readily replaced by a nitro group e.g., This is because

Chemistry · JEE Advanced · NTA ExamsHydrocarbons

The sulphonic acid group is often readily replaced by a nitro group e.g.,
 
This is because
  1. –SO3H group is a better leaving group than –NO2 group in electrophilic substitution
  2. –NO2 group is a better leaving group than –SO3H group in electrophilic substitutions
  3. This is a nucleophilic substitution.
  4. both (b and c)

Answer

(A) –SO 3 H group is a better leaving group than –NO 2 group in electrophilic substitution

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