Question

Assertion: Tyndall effect is not exhibited by true solutions.

Reason: The particles present in a true solution are too small to scatter light.

Options

• If both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.

• If both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.

• If Assertion is correct but Reason is incorrect.

• If Assertion is incorrect but Reason is correct.

Answer 1

If both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.

Explanation:

The Tyndall effect is not exhibited by true solutions because the particles (ions or molecules) in a true solution are too small to scatter light. The Tyndall effect involves the scattering of light by particles comparable in size to the wavelength of light, which occurs in colloidal solutions but not in true solutions due to their very small particle size. Hence, both the assertion and reason are correct, and the reason correctly explains the assertion.