Question

Which one has more basic character from pcl3 and pf3 and why

Answer 1

Answer:

Explanation:

While the bond angle of PH3 is less than that of PF3. Both PH3 and PF3 are pyramidal in shape. ... But PF3 has partial double bond character due to back π-donation of electrons from p orbitals of F atom to empty d orbitals of P. This results in large repulsion between P-F bonds and hence bond angle is large.

Answer 2

Answer:

pf3 is more basic than pcl3

Explanation:

basic character inversely proportional to covalent character.

for covalent character,more is size of anion , more is the basic character.

here cl- is greater in size than f-. so pcl3 more covalent than pf3

so conclusion is that pf3 is more basic than pcl3.