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  • When liquid ‘A’ is treated with a freshly prepared ammoniacal silver nitrate solution, it gives bright silver mirror. The liquid forms a white crystalline solid on treatment with sodium hydrogen sulphite.

When liquid ‘A’ is treated with a freshly prepared ammoniacal silver nitrate solution, it gives bright silver mirror. The liquid forms a white crystalline solid on treatment with sodium hydrogen sulphite. Liquid ‘B’ also forms a white crystalline solid with sodium hydrogen sulphite but it does not give test with ammoniacal silver nitrate. Which of the two liquids is aldehyde? Write the chemical equations of these reactions also.

Answers (1)

Since liquid A forms a bright silver mirror when treated with ammoniacal AgNO_{3} solution it is an aldehyde.
In the same way, liquid ‘B’ must be a methyl ketone for it does not give test with ammoniacal AgNO_{3} solution.

Chemical equations for these reactions are :

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