Which statement is not correct ?...

Which statement is not correct ?

A

Physical adsorbtion is due to van der Waal's forces

B

Physical adsorbtion decreases at high temperature and low pressure

C

Physical adsorbtion is reversible

D

Adsorbtion energy for a chemical adsorbtion is generally lesser than that or physical adsorbtion

Text Solution

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The correct Answer is:

D

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MODERN PUBLICATION|Exercise EXERCISE|185 Videos
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MODERN PUBLICATION|Exercise EXERCISE|85 Videos

MODERN PUBLICATION-SURFACE CHEMISTRY-EXERCISE

Modern theory of heterogeneous catalysis is:
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Enzymes are known to increase the rate of reaction by :
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Which statement is not correct ?
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In the adsorption of oxalic acid by activated charcoal, the activated ...
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The process of froth floatation and chromatography are based on :
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Platinum is used as a catalyst in :
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A catalyst in the finely divided from is most effective because :
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A catalyst for reversible reaction is a substance that :
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When a catalyst is added to a system the:
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The colloidal system of liquid dispersed in solid is called .
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The method of removing of soluble impurities of solutions is called
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In physisorption, the molecules of adsorbate held to the adsorbent by
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Is used to remove coloured matter from solution of sugar
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Milk is an exmaple of—,
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Lyophilic sols are more stable than lyophobic sols because
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The rate of chemisorption
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A colloidal system of two immiscible liquids is called
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The adsorbtion power of an adsorbent can be increased by
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Sols of S(8) and are example of colloids
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Starch is an example of solution.
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