Identify the product formed in the reaction Phenol + conc. H_2SO_4 373 ,K product

MHT CET 2022 Chemistry question

Identify the product formed in the reaction

Phenol + conc. HSO product

(A)p – Phenol sulphonicacidCorrect
(B)o – Phenol sulphonic acid
(C)m – Phenol sulphonic acid
(D)Benzene sulphonic acid

Answer: (A)

Solution

Sulphonation of phenol is an electrophilic substitution; the group directs the incoming group to the ortho and para positions. The ratio depends on temperature: at about 288-298 K (low temperature) the ortho isomer (kinetic product) predominates, whereas at about 373 K (high

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Question ID VK-094142