An organic compound, `C_(2)H_(4)O` gives a red precipitate when warmed with Fehling’s solution. It also undergoes aldol condensation in presence of alkali.
(i) Write IUPAC name of the compound.
(ii) What is the hybridization of carbon atoms in the compound ?
(iii) Write equation for the reaction.

Explanation

(i) Ethanal
(ii) `sp^(2)` and
(iii) `CH_(3)CHO+2Cu^(2+)+3OH^(-)rarr CH_(3)COO^(-)+2Cu^(+)+2H_(2)O`
`CH_(3)CHO+CH_(3)CHO overset(NaOH)rarr underset("aldol")(H_(3)C)-overset(H)overset(|)underset(OH)underset(|)C-CH_(2)-CHO`