Question

Which of the following gives the correct order of decreasing electron withdrawing effect ?

• A. ¾NO₂>¾CN >¾ F > C₆H₅¾
• B. C₆H₅ ¾>¾ F >¾CN >¾NO₂
• C. ¾F >¾CN > C₆H₅¾ >¾NO₂
• D. ¾CN > C₆H₅¾>¾ NO₂>¾ F

Answer 1

Answer: (A)

¾NO₂>¾CN >¾ F > C₆H₅¾

Answer 2

¾ NO₂ > ¾C ŗ N > ¾ F > ¾ C₆H₅

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(Cationic rature)