Which will give chiral molecule ?

Options

A. `CH_(3) COCl overset(LiAlH_(4))(to)`
B. `C_(2) H_(5)CHO overset(CH_(3) MgBr) underset(H^(+)// H_(2) O)(to)`
C. `(CH_(3))_(2) CH C_(2) H_(5) overset(Cu) (to)`
D.

Answer

B

Explanation

`C_(2) H_(5) CHO overset(CH_(3)MgBr) underset(H^(+)//H_(2) O)(to) C_(2) H_(5) - overset(H)overset(|) underset(CH_(3))underset(|)( C^(**) - OH`
`C^(**)` -chiral carbon as all the four valencies are attached with different substituents or groups.