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ICSE Class 10 Chemistry Question 6 of 10

Organic Chemistry - Unit Test Paper — Question 6

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6
Question

Question 6.1

Give reasons for the following :

Concentrated sulphuric acid may be added during esterification of acetic acid.

Answer

Reversible reaction may be prevented by using conc. H2SO4 when the reaction is about to complete by removing H2O.

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}