Question

Which of the following is not correct about the adsorption?

• A. Physical adsorption is not specific in nature.
• B. In adsorption, $\Delta G$, $\Delta S$ and $\Delta H$ are negative.
• C. $\mathrm{C_2H_5OH}$ acts as an auto catalyst in the hydrolysis of ethyl acetate.
• D. In Freundlich adsorption isotherm $\frac{x}{m} = k P^{\frac{1}{n}}$, the value of $-\frac{1}{n}$ is between 0 to 1.

Hint:

Always verify the role of substances in chemical reactions. Not all compounds that are involved in a reaction contribute as catalysts—many serve as solvents or reactants without altering the reaction rate.

Answer 1

The Correct Option is C

Analysis of Incorrect Statement: The statement that $\mathrm{C_2H_5OH}$ acts as an autocatalyst in the hydrolysis of ethyl acetate is incorrect.
Ethanol does not function as a catalyst in this reaction. The hydrolysis is typically accelerated by acids or bases, not by ethanol, which generally remains inert or acts as a solvent.