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STD 12 - p -Block elements - ll — JEE STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceJEESTD 12 - p -Block elements - ll4 Marks
MCQ
The molecule having smallest bond angle is :
  • A
    $NCl_3$
  • B
    $AsCl_3$
  • ✓
    $SbCl_3$
  • D
    $PCl_3$
✓

Answer

Correct option: C.
$SbCl_3$
c
All the members form volatile halides of the type $A X_{3} .$ All halides are pyramidal in shape. The bond angle decreases on moving down the group due to decrease in bond pair-bond pair repulsion.

$\begin{array}{ccc}{N C L_{3}} & {P C l_{3}} & {A s C l^{3}} \\ {107^{o}} & {94^{o}} & {92^{o}}\end{array}$

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