Describe the hybridisation in case of PCL3

Home Work Help
,
1

a) describe the hybridisation in case of PCL3
b) reduce the shape of SF4 molecule on basis of VSEPR theory

2
  1. PCl3 :
    Phosphorous has 3 electrons in its outer most shell and one lone pair so it tetravalent in nature, it can join to3 other Cl atoms and get sp3 hybridisation and tetrahedral shape.
    image
  2. SF4 :
    S has 6 valence electrons
    F has 7 valence elctrons hence 4 X 7 = 28 electrons
    image
    image