The correct match between Item-I (starting material) and Item-II (reagent) for the preparation of benzaldehyde is :
Item-I Item-II
(I) Benzene (P) $HCl$ and ${SnCl}_{2}, H_{3} O +$
(II) Benzonitrile (Q) $H_{2}, Pd - {BaSO}_{4}, S$ and quinoline
(III) Benzoyl Chloride (R) $Co, HCl and {AlCl}_{3}$

Question

The correct match between Item-I (starting material) and Item-II (reagent) for the preparation of benzaldehyde is :

TestHub · Accepted Answer

Gatterman-Koach reaction Reduction Stephan Reduction Rosenmund Reduction

Chemistry - Carbonyl compounds Question with Solution | TestHub