Question

Which of the above compound is most reactive
towards an electrophile (E+)?​

Answer 1

Answer:

1

Explanation:

It is most acidic.If its conjugated base is formed resonance provides stability to the compound.

Answer 2

Answer:

1

Explanation:

For an electrophile to attack on any target molecule...that molecule must have a good electron density.

So in all four options, benzene ring of first option has conjugated bond pair from upper side chain...and also alkyl chain from lower side having +I efect on benzene...

all these two factors are increasing -ve density on benzene.

Hence 1 should be correct answer.