I was able to narrow down the answer choices between C. and E. . I don’t know ho

Question

I was able to narrow down the answer choices between C. and E. . I don’t know how to move on from there and determine the correct answer. I know ARIO is involved, could someone please explain? Does it have something to do with electron donating and electron withdrawing? Screen Shot 2018-09-14 at 10.39.01 PM 18) Identify the weakest base. (Hint: NO2 is electron withdrawing by resonance. CH3 is electron donating through induction, Cl is electron withdrawing through induction, OCH3 is electron donating through resonance. NH2 (B) NH C) NH (D) NH (E) NH, (A) CH NO2 Cl OCH,

Explanation / Answer

Weakest base among them is that in which stronger electron withdrawing group is present so that it create problems to donate electron.

Among all extra function group attached with the ring NO2 is the strongest electron withdrawing group hence third one is the weakest base.

In E option OCH3 is electron donating group.

Correct answer is C.

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