Question

Two structures of $H_2O_2$ are drawn below. Identify the phases $X$ and $Y$ of $H_2O_2$

• A. $(X)$ is the structure of $H_2O_2$ in gas phase and $(Y)$ in solid phase
• B. $(X)$ is structure of $H_2O_2$ in solid phase and $(Y)$ in gas phase
• C. $(X)$ and $(Y)$ are structures of $H_2O_2$ in gas phase
• D. $(X)$ and $(Y)$ are structures of $H_2O_2$ in solid phase

Answer 1

Answer: (A)

(X) is the structure of $H _{2} O _{2}$ in the gas phase and (Y) in the solid phase.
$O - O$ single bond length is higher in the gas phase. $H - O - O$ bond angle is higher in the solid phase.