Question

Cloud is an example of
A. Solid dispersed in gas
B. liquid dispersed in gas
C. liquid dispersed in solid
D. solid dispersed in liquid

Answer 1

Hint: Clouds are a fine example of a colloidal solution. Hence, it definitely is a phase dispersed into another phase. The two different phases can either be solid, liquid or gas. These two different phases are termed as dispersed phase and another one is termed as continuous phase. Hence, to understand the phases, the knowledge of these two phases is required.

Complete answer:
Clouds are examples of colloids. Hence, in order to understand the answer of the given question, we need to understand what a colloid is. A colloid is a mixture in which one species, which is of size a little more than microscopic, is dispersed in a continuous phase.
The species that is dispersed is termed as dispersed phase. The one that gives the continuous phase is termed a dispersion medium.
In the case of clouds, in the position of the two phases, i.e. the dispersed phase and the continuous phase; cloud has a dispersion phase as gas and dispersed phase as liquid. Hence we can state that cloud is an example of liquid dispersed in a gas.
Thus, the correct option is option (B) , i.e. liquid dispersed in gas.

Note:
Colloidal particles are little bigger than the microscopic particles but are not big enough to be seen by naked eyes. Their size lies in the region of 1 nanometer to 1 micrometer. Also, other than liquid dispersed in gas, we can combine all the 3 phases amongst themselves , except for gas in gas since they do not form a colloid.