NEET levelSingle correct optionDifficulty 1 of 3sc007
The adsorption of a gas on charcoal increases when the charcoal is:
Afinely divided into a powder
Bused as a single compact lump
Ckept at a much higher temperature
Dalready saturated with the same gas
Answer: A
Adsorption occurs on the surface, so a larger surface area for a given mass gives more adsorption. Powdering the solid increases the surface area, while saturation or a higher temperature reduces adsorption.