Question

Identify the CORRECT statements from the following.

i. The colour of colloidal dispersion depends on size of colloidal particles.

ii. Tyndall effect is used to distinguish between colloidal dispersion and true solution.

iii. Eosin and congo red are examples of negatively charged sols.

विकल्प

• i, ii, iii

• i, ii

• i, iii

• ii, iii

Answer 1

i, ii, iii