Question

$O$ - $O$ bond length in $H _2 O _2$ is $X$ than the $O - O$ bond length in $F _2 O _2$. The $O - H$ bond length in $H _2 O _2$ is $Y$ than that of the $O - F$ bond in $F _2 O _2$. Choose the correct option for $\underline{X}$ and $\underline{Y}$ from those given below :

• A. $X$-longer, $Y$-shorter
• B. $X$ - shorter, $Y$ - longer
• C. $X$ - shorter, $Y$ - shorter
• D. $X$-longer, $Y$-longer

Answer 1

Answer: (C)

According to bent rule more electronegative atom occupy less s-characters so bond length increases. $O - H$ bond will be short than $O - F$ bond due to small size of $H$ than $F$