Question

Sulphonation of benzoic acid produces mainly

• A. o-sulphobenzoic acid
• B. m-sulphobenzoic acid
• C. p-sulphobenzoic acid
• D. o- and p-sulphobenzoic acid

Answer 1

Answer: (B)

m-sulphobenzoic acid

Answer 2

Acetic acid freezes at $0 ^ { \circ } \mathrm { C }$. So glacial acetic acid is obtained by crystallizing, separating and melting acetic acid.