Question

Which of the following statement(s) is/are correct regarding dinitrogen pentoxide?

• A. It is basic in nature
• B. It is also known as the anhydride of nitric acid
• C. It is a colourless deliquescent solid
• D. The oxidation state of nitrogen is $+5$

Answer 1

Answer: (B), (C), (D)

The oxidation state of nitrogen is $+5$

Dinitrogen pentoxide $\left(N_2{O}_5\right)$, also known as nitrogen (V) oxide or anhydride of nitric acid, is an oxide of nitrogen which is acidic in nature. The oxidation state of nitrogen in it is $+5$. It is a colourless deliquescent solid.
Hence, option (a), (b) and (c) are correct.