MCQ
The strongest ortho - para and strongest meta - directing groups respectively are
  • A
    $-\,NO_2$ and $-\,NH_2$
  • B
    $-\,CONH_2$ and $-\,NH_2$
  • C
    $-\,NH_2$ and $-\,CONH_2$
  • $-\,NH_2$ and $-NO_2$

Answer

Correct option: D.
$-\,NH_2$ and $-NO_2$
d
The strongest ortho-para and strongest metadirecting groups are $-N H_{2}$ and $-N O_{2}$ respectively because the electron donating ability of $-N H_{2}$ is higher than others and electron withdrawing ability of $-N O_{2}$ group is higher than others.

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