Extent of adsorption of adsorbate from solution phase increases with (a) increase in amount of a...

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Extent of adsorption of adsorbate from solution phase increases with
(a) increase in amount of adsorbate in solution.
(b) decrease in surface area of adsorbent.
(c) increase in temperature of solution.
(d) decrease in amount of adsorbate in solution.
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