Question

Select the correct options regarding the comound $P_4{O}_{10}$

• A. It has 6 $P-O-P$ bonds
• B. The average oxidation state of phosphorous is +5
• C. The compound is held together by weak van der Waal's forces
• D. It is not used as a desicant

Answer 1

Answer: (A), (B), (C)

The compound is held together by weak van der Waal's forces

The above structure clearly has 6 $P-O-P$ bonds.

Average oxidation state:
$4x+10(-2)=0⟹x=+5$
Hence, average oxidation state = +5

It is held together by weak van der Waal's forces and it is a strong dehydrating agent. Hence, it is often used as a desicant.