Predict the product 'B' in the sequence of reaction `HC -= CH overset (30% H_(2) SO_(4))underset(Hg So_(4)) to A overset (NaOH) to B`

Options

A. `CH_3COONa`
B. `CH_3COOH`
C. `CH_3CHO`
D. `CH_3-underset(OH)underset(|)(CH)-CH_2CHO`

Answer

D

Explanation

`HC-=CH underset(HgSO_4)overset(30% H_2SO_4)to underset("..A..")(CH_3-overset(O)overset(||)C-H) underset("aldol condensation")overset(NaOH)to underset("..B..")(CH_3-underset(OH)underset(|)(CH)-CH_2-overset(O)overset(||)C-H)`.