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.