Question

Which of the following is/are a diatomic gas(es) at the room temperature?

• A. (i), (iii), (iv), (vi)
• B. (i), (ii), (iii), (v), (vi)
• C. (ii), (iii), (v), (iv)
• D. (v), (iv)

Answer 1

Answer: (A), (B)

The correct options are
A

(i), (iii), (iv), (vi)

B

(i), (ii), (iii), (v), (vi)

Atomicity is the total number of atoms present in one molecule of an element, compound or a substance. At room temperature, $O_2$ and $C{l}_2$ are diatomic gases. Molecules with two atoms each are diatomic. Now, $I_2$ and $B{r}_2$ are diatomic but $I_2$ is a shiny solid element whereas $B{r}_2$ is in liquid state.