Question

5. Discuss the shape of the following molecules using VSEPR model :
BeCl2, Sicla PH3,
educed when​

Answer 1

Answer:

bp+lp = total ------> shape

becl2 = 2+0 = linear =sp

sicl4= 4+0 = tetrahyderal=sp3

ph3= 3+1 = pyramidal= sp3

Answer 2

BeCl2 - 2 electrons thus 2 bonds thus linear , sp

SiCl3 - 4 electron thus sp3 this shape is pyramidal

PH3 - in this hybridization is not possible as en diff between them is not high thus 3 bonds will be in 90°to each other (drago's rule)