Practicing Success

Target Exam

CUET

Subject

Chemistry

Chapter

Physical: Chemical Kinetics

Question:

Statement I: Hydrolysis of cane sugar is a first-order reaction

Statement II: Water is present in large excess during hydrolysis

Options:

Statement I and statement II are correct and statement II is correct explanation of statement I

Statement I and statement II are correct but statement II is not the correct explanation of statement I

Statement I is true but statement II is false

Statement I is false but statement II is correct.

Correct Answer:

Statement I and statement II are correct and statement II is correct explanation of statement I

Explanation:

The correct answer is option 1.Statement I and statement II are correct and statement II is correct explanation of statement I

Statement I: Hydrolysis of cane sugar is a first-order reaction.
This statement is true. The hydrolysis of cane sugar (sucrose) can indeed follow a first-order reaction kinetics. In a first-order reaction, the rate of the reaction is directly proportional to the concentration of a single reactant. In the case of hydrolysis, the concentration of sucrose is typically the limiting factor affecting the reaction rate.

Statement II: Water is present in large excess during hydrolysis.
This statement provides the correct explanation for Statement I. In the hydrolysis of cane sugar, water is usually present in large excess. The excess of water ensures that the hydrolysis reaction proceeds at a faster rate and does not significantly affect the concentration of water during the reaction.

Therefore, the correct answer is: Statement I is true, and Statement II is the correct explanation of Statement I.