Question

When phosphorus is heated with conc hno3 it reduces the acid to (1)no (2)no2 (3)n2o2 (4)n2o5?

Answer 1

Answer:

2)

Explanation:

Answer 2

It reduces the acid to nitrogen dioxide.

• One mole of Phosphorus on reaction with concentrated five moles of nitric acid to form phosphoric acid along with five moles of nitrogen dioxide and water.
• The balanced reaction is as follows-
• $P+5HNO_3\rightarrow H_3PO_4+5NO_2+H_2O$.
• In this reaction, P is oxidised to phosphoric acid and nitric acid is reduced to nitrogen dioxide.
• Hence the correct option is 2.