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ICSE Class 10 Chemistry Question 67 of 93

Organic Chemistry — Question 67

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Question

Question 7(2017)

State one relevant observation for – Addition of ethyl alcohol to acetic acid in the presence of conc. H2SO4.

Answer

On warming, the mixture gives fruity smell. Acetic acid on heating with an alcohol and a dehydrating agent [conc. H2SO4] forms an ester-ethyl acetate.

C2H5OHethyl alcohol+CH3COOHacetic acid→Conc. H2SO4CH3−COO−C2H5ethyl ethanoate+H2O\underset{\text{ethyl alcohol}}{\text{C}_2\text{H}_5\text{OH}} + \underset{\text{acetic acid}}{\text{CH}_3\text{COOH}} \xrightarrow{\text{Conc. H}_2\text{SO}_4} \underset{\text{ethyl ethanoate}}{\text{CH}_3-\text{COO}-\text{C}_2\text{H}_5} + \text{H}_2\text{O}