Question

The rate of reaction __________ on increasing the surface area of reactants.

• A. remains constant
• B. none of the above
• C. increases
• D. decreases

Answer 1

The correct option is C increases

Increasing the surface area of the reactants, increases the rate of reaction.
The increase in surface area increases the number of collisions per second and thereby increases the rate of reaction.

For example, with a dilute mineral acid, powdered zinc will react faster as compared to zinc granules.