Question

Which of the following oxide of nitrogen is the anhydride of $HNO_{3}$.

• A. $NO$
• B. $N_{2}O_{3}$
• C. $N_{3}O_{4}$
• D. $N_{2}O_{5}$

Answer 1

Answer: (D)

$N_{2}O_{5}$

Answer 2

$\underset{\text{Nitric acid}}{2HNO_{3}} \rightarrow N_{2}O_{5} + H_{2}O$