The percentage of nitrogen in `HNO_(3)` is

The percentage of nitrogen in HNO3 is ...................................

The covalency of nitrogen in HNO_2 is

What is the oxidation state of nitrogen in \(HNO_{3}\)

What is the formal charge on the nitrogen atom in HNO_(3) ? H-overset(..)underset(..)O-overset(":"overset(..)O":")overset(|)N=overset(..)underset(..)O

Which of the following oxides of nitrogen is anhydride of HNO_(3) ?