Question

When ethyl acetate was hydrolyzed in the presence of $0.1M$ $HCl$, the constant was found to be $5.40\times {10}^{-5}{s}^{-1}$. But when $0.1$ $M{H}_{2}S{O}_4$ was used for hydrolysis, the rate constant was found to be $6.20\times {10}^{-5}{s}^{-1}$. From these we can say that:

• A. $H_{2}S{O}_4$ is stronger than $HCl.$
• B. $H_{2}S{O}_4$ and $HCl$ are both of the same strength.
• C. $H_{2}S{O}_4$ is weaker than $HCl.$
• D. The data is insufficient to compare the strength of $HCl$ ad $H_{2}S{O}_4$.

Answer 1

The correct option is A $H_{2}S{O}_4$ is stronger than $HCl.$

Since $k_{H_{2}S{O}_4}>k_{HCl},$ hence $H_{2}S{O}_4$ is stronger acid than HCl.