pBlock ElementsII 1 Question 38

38. Which of the following oxides of nitrogen is a coloured gas?

(1987,1 M)

(a) $\mathrm{N} _{2} \mathrm{O}$

(b) $\mathrm{NO}$

(c) $\mathrm{N} _{2} \mathrm{O} _{4}$

(d) $\mathrm{NO} _{2}$

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Answer:

Correct Answer: 38. (d)

Solution:

$\mathrm{NO} _{2}(g)$ is deep brown coloured.