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Answer the following.
Give one example of pseudo first order reaction.
Answer
Answer
Official answer keyEquation: $\mathrm{CH_{3}COOC_{2}H_{5}} + \mathrm{H_{2}O} \xrightarrow{\text{H+}} \mathrm{CH_{3}COOH} + \mathrm{C_{2}H_{5}OH}$
Hydrolysis of ethyl acetate (or of sucrose) in excess water: $\mathrm{CH_3COOC_2H_5 + H_2O \rightarrow CH_3COOH + C_2H_5OH}$ (water is in large excess, so the rate depends only on the ester).
From ISC 2026 Specimen Chemistry Paper 1, question 17(ii).