Question

pls ans this qn.....​

Answer 1

HEY !!

ANSWER➡ opt A

Reason▶ due to strong -M effect CN stabilises the charge, also aldehyde group also does the same, but has less -M effect compared to CN.

While due to strong +M effect (P) is further destabilized, while in compound (S) CH3 group increases e density further due to +I effect!