Question

Please explain with reason.

Answer 1

Answer:

Both 3 and 4 are incorrect as in ,"3" 1st one has more conjugated lone pair hence less ability to donate Lone pair therefore less basicity.

and in "4" 2nd opt. is most acidic as its conjugate base is most stable.

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Answer 2

Answer:

ok than 4th is surely incorrect

Explanation:

in 4th option = 2nd is more acidic than 1st due -I of benzene