Question

Smoke is an example of:

• A. gas dispersed in liquid
• B. gas dispersed in solid
• C. solid dispersed in gas
• D. solid dispersed in solid

Answer 1

The correct option is C solid dispersed in gas

Smoke is a type of colloid. Here, the pollutant particles (solid impurities like dust) are dispersed into the atmospheric air (gas). Hence, the dispersed phase is solid and the dispersion medium is gas. So, smoke is an example of solid dispersed in gas.