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STD 11 -p-Block elements - I — NEET STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceNEETSTD 11 -p-Block elements - I4 Marks
MCQ
Compare $\pi -$ bond strength between $B$ and $N$ given in two compounds

$(I)$  $\begin{array}{*{20}{c}}
  {{{(C{H_3})}_3}Si - NB{H_2}} \\ 
  {\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,|} \\ 
  {\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,Si{{(C{H_3})}_3}} 
\end{array}$         $(II)$   $\begin{array}{*{20}{c}}
  {{{(C{H_3})}_3}C - NB{H_2}} \\ 
  {\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,|} \\ 
  {\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,C{{(C{H_3})}_3}} 
\end{array}$

  • A
    There is no $\pi $ bond character between $B$ and $N$
  • B
    Same in $I$ and $II$
  • C
    $I > II$
  • ✓
    $II > I$
✓

Answer

Correct option: D.
$II > I$
d

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