Question

How does concentrated HNO3 oxidises non metal give example

Answer 1

Concentrated nitric acid is strong oxidising agent, especially in hot condition. In these acids, the central atoms-nitrogen and sulphur- are in their maximum oxidation states of +5 and +6 respectively. So, their reactions with nonmetals like carbon or sulphur are typical redox reactions in which such moderately electronegative nonmetals are forced to behave as reducing agents

EXAMPLE

C + 4HNO3 = CO2 + 4NO2 + 2H2O

:)