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

Step-by-step solution

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