An organic compound X gives ared precipitate on heating with Fehling's solution. Which one of the following reactions yields X as a major product?

Options

A. `HCHOoverset((i)CH_(3)Mgl)underset((ii)H_(2)O)to`
B. `C_(2)H_(5)Br+AgOHoverset(Delta)to`
C. `2C_(2)H_(5)Br+Ag_(2)Ooverset(Delta)to`
D. `C_(2)H_(2)+H_(2)Ooverset(40%H_(2)SO_(4))underset(1%HgSO_(4))to`

Answer

d

Explanation

Acetaldehyde (X) on heating with Fehling's solution gives red precipitate.
`C_(2)H_(2)+H_(2)Ooverset(40%H_(2)SO_(4))underset(1%HgSO_(4),60^(@)C)tounderset((X))(CH_(3)CHO)`