IGNOU MCH 16 2026 - With a suitable example suggest the order of the reactions o

Question

With a suitable example suggest the order of the reactions of base-catalyzed hydrolyses and predict the mechanism that is followed in them.

21 Jan 2026

Answer :

Word Count : 275

Base-catalyzed hydrolysis, also known as saponification in the context of esters, involves the reaction of an ester with a hydroxide ion to yield an alcohol and a carboxylate salt. A typical example is the hydrolysis of ethyl acetate in the presence of sodium hydroxide: CH₃COOCH₂CH₃ + OH⁻ → CH₃COO⁻ + CH₃CH₂OH The reaction rate for base-catalyzed hydrolysis generally follows second-order kinetics, as it depends on the concentrations of both the ester and the hydroxide ion. This can be expressed as: Rate = k [ester][OH⁻] This indicates a bimolecular reaction where the

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