Complete the following reactions and identify A, B and C,
(i) `A+H_(2)(g) overset(Pd//BaSO_(4))to (CH_(3))_(2)CH-CHO`
(ii) `CH_(3)-overset(H_(3)C)overset(|)underset(CH_(3))underset(|)C-overset(O)overset(||)C-CH_(3)+NaOI to B+C`

Explanation

(i) `underset((A))(CH_(3)-overset(CH_(3))overset(|)(CH)-overset(O)overset(||)(C)-Cl+H_(2(g)))overset(Pd//BaSO_(4))toCH_(3)-overset(CH_(3))overset(|)(CH)-CHO`
(ii) `CH_(3)-overset(CH_(3))overset(|)underset(CH_(3))underset(|)(C)-overset(O)overset(||)(C)-CH_(3)+NaOI tounderset((B))(CH_(3)-overset(CH_(3))overset(|)underset(CH_(3))underset(|)(C)-overset(O)overset(||)(C)-ONa)+underset((C))(CHI_(3))`