Question

Consider the following hypothetical reaction involving the reaction of Gas $X$ with Gas $Y$ to produce a single gaseous product, $X_{2}Y\left(g\right)$. An experiment shows that three volumes of Gas $X$ react with exactly one volume of Gas $Y$, producing two volumes of the product, $X_{3}Y\left(g\right)$, with none of either reactant remaining.

$3vol.GasX+1vol.GasY\to 2vol.X_{3}Y\left(g\right)$

Which of the following statements correctly interprets these observations?

• A. Neither Gas $X$ nor Gas $Y$ must necessarily be diatomic.
• B. Both Gas $X$ and Gas $Y$ are necessarily diatomic.
• C. Gas $X$ must be diatomic; Gas $Y$ may or may not be diatomic.
• D. Gas $Y$ must be diatomic; Gas $Y$ may or may not be diatomic.

Answer 1

Answer: (B)

Both Gas $X$ and Gas $Y$ are necessarily diatomic.

gas X is diatomic

gas Y is diatomic

in this reaction this is necessarily the both gas X and Y are both are diatomic