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 sulphate. Liquid 'B' also forms a white crystalline solid with sodium hydrogen sulphate. 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.

Explanation

(i) Since liquid .A. forms a white crystalline solid on treatment with `NaHSO_3`, it may be an aldehyde or a methyl ketone.
Further since liquid .A. forms a bright silver mirror on treatment with freshly prepared ammoniacal silver nitrate solution, therefore, liquid .A. is an aldehyde.
(ii) Since liquid .B. forms a white crystalline solid on treatement with `NaHSO_3`, it may be an aldehyde or ketone. Further since liquid .B. does not give test with ammoniacal silver nitrate solution, therefore, liquid .B. must be a methyl ketone.
Chemical equations of reactions involved are as follows: