Question

Various colloids are given below. Match column X with column Y.
$\begin{array}{cc}\text{X (Colloids)}& \text{Y (Classification)}\\ \text{(i) Cloud}& \text{(P) Sol}\\ \text{(ii) Mud}& \text{(Q) Aerosol}\\ \text{(iii) Soap lather}& \text{(R) Emulsion}\\ \text{(iv) Milk}& \text{(S) Foam}\end{array}$

• A. i- P, ii- Q, iii- R, iv- S
• B. i- P, ii- R, iii- Q, iv- S
• C. i- Q, ii- P, iii- S, iv- R
• D. i- Q, ii- P, iii- R, iv- S

Answer 1

The correct option is C i- Q, ii- P, iii- S, iv- R

Cloud is an aerosol where the dispersed phase is a liquid and the dispersion medium is a gas.
Mud is a sol where the dispersed phase is a solid and the dispersion medium is a liquid.
Soap lather is a foam where the dispersed phase is a gas and the dispersion medium is a liquid.
Milk is an emulsion where the dispersed phase is an oil (liquid fat) and the dispersion medium is a liquid (water).