The statement "Fog is an example of a colloidal system with liquid dispersed in gas" is True.
Explanation:
A colloidal system (or colloid) is a mixture where one substance is dispersed evenly throughout another. The dispersed substance consists of particles that are intermediate in size between those in true solutions and those in suspensions. In a colloid, the dispersed particles do not settle out and cannot be separated by ordinary filtering or centrifuging.
In the case of fog, it is a colloidal system where tiny liquid water droplets are dispersed throughout air (a gas). The water droplets are small enough to remain suspended in the air, creating a misty appearance. This type of colloid, where a liquid is dispersed in a gas, is specifically called an aerosol.
Dispersed phase (the phase that is distributed or spread out): Liquid (water droplets)
Dispersion medium (the phase in which the dispersed phase is distributed): Gas (air)
Since the liquid water droplets are dispersed in a gaseous medium (air), fog fits the definition of a colloid with a liquid dispersed in a gas, making the given statement true.