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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
In which of the following species is the interatomic bond angle is ${109^o}28'$
  • ✓
    $N{H_3},\,\,{(B{F_4})^{ - 1}}$
  • B
    ${(N{H_4})^ + },\,\,B{F_3}$
  • C
    $N{H_3},\,\,B{F_4}$
  • D
    ${(N{H_2})^{ - 1}},\,\,B{F_3}$
✓

Answer

Correct option: A.
$N{H_3},\,\,{(B{F_4})^{ - 1}}$
(a)Ammonia and ${(B{F_4})^{ - 1}}$shows $s{p^3}$-hybridization.

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