ï»¿ What are the physical states of dispersed phase and dispersion medium of froth? from Chemistry Surface Chemistry Class 12 Nagaland Board

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What are the physical states of dispersed phase and dispersion medium of froth?

in froth, the (i) dispersed phase is gas (ii) dispersion medium is liquid.
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In Haber's process, hydrogen is obtained by reacting methane with steam in presence of NiO as catalyst. The process is known as steam reforming. Why is it necessary to remove CO when ammonia is obtained by Haber’s process?

Presence of CO in the synthesis of ammonia by Haber’s process adversely affects the activity of iron catalyst.
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Why are powdered substances more effective adsorbents than their crystalline forms?

Powderded substance are more effective adsorbent than their crystalline forms because when a substance is powdered its surface area increase and physisorption is directly proportional to the surface area of adsorbent,
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Why are substances like platinum and palladium often used for carrying out electrolysis of aqueous solutions?

The Plantium and palladium are used for electrolysis of aqueous solution due to the chemically inert in nature and good adsorptive capacity for hydrogen.
Because Gases like hydrogen are absorbed on the surface of platinum and palladium (adsorption) and then passes into the bulk of the adsorbent (platinum and palladium).

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Why does physisorption decrease with the increase of temperature?