In the following reaction, product 'P' is:
R—C—Cl
||
O
H2
Pd-BaSO4 → P
RCH2OH
RCOOH
RCHO
RCH3
Correct answer: RCHO
Solution
The reaction involves the Rosenmund reduction, where an acyl chloride (RCOCl) is reduced to an aldehyde (RCHO) using H2 and Pd-BaSO4 as a catalyst. The BaSO4 prevents over-reduction to alcohol.