Question

Which of the following is/are colourless and odourless gases?

• A. $N{H}_3$
• B. $O_2$
• C. $N_2$
• D. $N{O}_2$

Answer 1

Answer: (B), (C)

The correct options are
B

$O_2$

C

$N_2$

$N{H}_3$ is a colourless gas with a pungent smell.

$N{O}_2$ is brown in colour.

$N_2$ and $O_2$ are colourless and odourless gases.