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प्रश्न
Give reason why a finely divided substance is more effective as an adsorbent.
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उत्तर
Adsorption is a surface phenomenon. Therefore, adsorption is directly proportional to the surface area. A finely divided substance has a large surface area. Both physisorption and chemisorption increase with an increase in the surface area. Hence, a finely divided substance behaves as a beneficial adsorbent.
संबंधित प्रश्न
Why is adsorption always exothermic?
Write any two characteristics of chemisorption.
Distinguish between the meaning of the terms adsorption and absorption. Give one example of.
Physisorption is reversible while chemisorption is irreversible. Why ?
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Powdered substances are more effective adsorbents.
Answer in one sentence:
Name type of adsorption in which the compound is formed.
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The physical adsorption is due to ____________.
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(a) \[\ce{2SO2 (g) + O2 (g) ->[NO(g)] 2SO3 (g)}\]
(b) \[\ce{2SO2 (g) ->[Pt(s)] 2SO3 (g)}\]
(c) \[\ce{N2 (g) + 3H2 (g) ->[Fe(s)] 2NH3 (g)}\]
(d) \[\ce{CH3COOCH3 (l) + H2O (l) ->[HCI(l)] CH3COOH (aq) + CH3OH (aq)}\]
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In physical adsorption, gas molecules are bound on the solid surface by
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Reason R : Gases with lower critical temperatures are readily adsorbed by activated charcoal.
In light of the above statements, choose the correct answer from the options given below.
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