Question

Assertion: A colloidal sol scatters light but a true solution does not.

Reason: The particles in a colloidal sol move slowly than in a true solution.

Options

• Both assertion and reason are true and reason is the correct explanation of assertion.

• Both assertion and reason are true but reason is not the correct explanation for assertion.

• Assertion is true but reason is false.

• Assertion is false but reason is true.

Answer 1

Both assertion and reason are true but reason is not the correct explanation for assertion.

Explanation:

Colloid solution is a heterogeneous solution and shows the Tyndall effect, while the true Solution is homogeneous and doesn't show the Tyndall effect. Thus, both assertion and reason are true but reason is not the correct explanation of assertion.