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

Rajasthan BoardEnglish MediumSTD 11 ScienceChemistry4. Chemical bonding and molecular structure1 Mark
MCQ
The bond angle in $P{H_3}$ is
  • ✓
    Much less than $N{H_3}$
  • B
    Equal to that of $N{H_3}$
  • C
    Much greater than $N{H_3}$
  • D
    Slightly greater than $N{H_3}$
✓

Answer

Correct option: A.
Much less than $N{H_3}$
(a) In fifth group hydride bond angle decreases from top to bottom $N{H_3} > P{H_3} > As{H_3} > $ $Sb{H_3} > Bi{H_3}$.

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