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Why is a finely divided substance more e...

Why is a finely divided substance more effective as an adsorbent?

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A finely divided substance (adsorbent) has more adsorbing power due to the following reasons :
(i) The surface area increases and the adsorbate particles get better opportunity to be adsorbed.
(ii) The number of active sites, also called active centres become more and the extent of adsorption increases.
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