Why are powdered substance more effective as adsorbents than their crystalline forms ?

Options

A. adsorption is an exothermic process
B. they become insert and do not react with the adsorbate
C. the extent of adsorption increases with increases in surface area of the adsorbent
D. adsorption is more if the size of adsorbent is small.

Answer

C

Explanation

Finely powdered substances have largs, porous surface ares, hence act as better absorbent .