The correct order of bond angles (smallest first)

Chemical Bonding

The correct order of bond angles (smallest first) in H2S, NH3, BF3 and SiH4 is

  1. H2S < NH3 < SiH4 < BF3
  2. NH3 < H2S < SiH4 < BF3
  3. H2S < SiH4 < NH3 < BF3
  4. H2S < NH3 < BF3 < SiH4

Answer

The correct order of bond angle (smallest first) is

H2S < NH3 < SiH4 < BF3

92.6° < 107° < 109° < 120°

The correct option is C.