Q4 / 180 · KCET 2017 · Chemistry

Which of the following structure of a molecule is expected to have three bond pairs and one
lone pair of electrons?

  • A
    Tetrahedral
  • B
    Trigonal Planar
  • Correct answer
    C
    Pyramidal
  • D
    Octahedral

Solution

For tetrahedral geometry: No. of electron pair $=4$ Bond pair = 4 Lone pair = 0 Figure
For pyramidal geometry: No. of electron pair $=4$ Bond pair $=3$ Lone pair $=1$Figure
For trigonal planar geometry: No. of electron pair $=3$ Total bond pair $=3$ Lone pair = 0Figure
For octahedral geometry: No. of electron pair $=6$

Hence, the correct answer is option: 'C'.

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