Question

In $P_4{O}_{10}$ molecule, bridging $P-O$ bond length is :

• A. larger than that of in $P_4{O}_6$
• B. lesser than that of in $P_4{O}_6$
• C. Equal to that of in $P_4{O}_6$
• D. cannot be compared

Answer 1

The correct option is B lesser than that of in $P_4{O}_6$

In $P_4{O}_{10}$ molecule bridging $P-O$ bond length is lesser than that of in $P_4{O}_6$. This is because, the P atom in $P_4{O}_{10}$ molecule has more attraction for bond pair of electrons ( due to greater partial positive charge) due to the presence of a doubly bonded oxygen atom.