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

When liquid 'A' is treated with a freshly prepared ammoniacal silver n

1.	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 hydrogensulphite. Liquid 'B' also forms a white crystalline solid with sodium hydrogensulphite 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.
Answer» SOLUTION :The liquid A is an aldehyde. ALDEHYDES give a bright silver mirror when treated with ammoniacal silver nitrate solution. They also form a WHITE crystalline solid on treatment with sodium hydrogensulphite. The REACTIONS are given as under :