Question

Phosphorus pentoxide on reaction with concentrated nitric acid gives dinitrogen pentoxide – True or False?

• A. True
• B. False

Answer 1

The correct option is A True

Phosphorus pentoxide on reaction with concentrated nitric acid gives dinitrogen pentoxide and metaphosphoric acid. Do note that there is no change in the oxidation state of either of the pnictogens in this reaction.
$P_2{O}_5+2HN{O}_3\to 2HP{O}_3+N_2{O}_5$