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4. Chemical bonding and molecular structure — Chemistry STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceChemistry4. Chemical bonding and molecular structure1 Mark
MCQ
Which of the following compounds have the same no. of lone pairs with their central  atom?
$(I)\, XeF^-_5$   $(II)\, BrF_3$   $(III)\, XeF_2$   $(IV)\, H_3S^+$  $(V)$ Triple Methylene
  • A
    $IV$ and $V$
  • B
    $I$ and $III$
  • C
    $I$ and $II$
  • D
    $II, IV$ and $V$
✓

Answer

$(c)$ $XeF^-_5$  :  $2$ lone pairs  :  pentagonal planar

$BrF_3$  :  $2$ lone pairs  :  Bent $-T-$ shape

$XeF_2$  :  $3$ lone pairs  :  Linear 

$H_3S^+$  :  $1$ lone pairs   :  Pyramidal

$CH_2$  :  $2$ unpaired $\bar es$ (No lone pair)  :  Linear

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