Question

Which one of the following statements about NO is wrong?

• A. NO is an odd electron molecule
• B. It is a free radical and highly reactive
• C. It readily forms complexes with transition metal ions
• D. It can be prepared by heating $N{H}_{4}N{O}_3$ at ${250}^{\circ }C$

Answer 1

The correct option is D It can be prepared by heating $N{H}_{4}N{O}_3$ at ${250}^{\circ }C$

It can be prepared in the laboratory by reacting sodium, nitrite $\left(NaN{O}_2\right)$ with a reducing agent such as $F{e}^{2+}$ in an acidic medium.

$N{H}_{4}N{O}_3$ on heating at ${250}^{\circ }C$ gives $N_{2}O$ not $NO$.

Hence, option D is an incorrect statement.