Question

(a) Which of the following pairs of colloids and their dispersed phase is correct? i. Smoke - gas ii. Shaving cream - liquid iii. Milk of magnesia - liquid iv. Cheese - liquid v. Sponge – solid

Answer 1

Answer:

Option 1 is the right answer as smoke is in the state of gas

Answer 2

Answer:

Cheese-liquid is the correct pair of colloid and its dispersed phase

Explanation:

Colloid is a mixture in which one substance is dispersed into another substance. The finely divided particles which are dispersed in the medium are called dispersion phase. The solution in which those particles are dispersed is called dispersion medium.

Colloid              dispersed phase         dispersion medium

smoke                  solid                           gas

shaving cream     gas                             liquid

Milk of magnesia solid                           liquid

Cheese                 liquid                          solid

Sponge                 gas                             solid