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प्रश्न
What is the role of activated charcoal in gas mask used in coal mines?
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उत्तर
Role of activated charcoal can be explained on the basis of adsorption. In gas mask, charcoal adsorbs the pollutant gases like \[\ce{SO2, NO2, CH4, CO2}\] etc. present in atmosphere due to heavy traffic.
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संबंधित प्रश्न
Give reasons for the following observations:
Physisorption decreases with increase in temperature.
Why is adsorption always exothermic?
What is the difference between physisorption and chemisorption?
Give reason why a finely divided substance is more effective as an adsorbent.
What are the factors which influence the adsorption of a gas on a solid?
Physisorption is reversible while chemisorption is irreversible. Why ?
Powdered substances are more effective adsorbents than their crystalline forms because ____________.
Which among the following is true for chemisorption?
In physisorption, adsorption is generally ____________.
Chromatography is based on the principle of ____________.
The extent of adsorption increases with the ____________.
Physical adsorption of a gaseous species may change to chemical adsorption with ______.
Why do physisorption and chemisorption behave differently with rise in temperature?
What is the role of diffusion in heterogenous catalysis?
In physical adsorption, gas molecules are bound on the solid surface by
Rate of physisorption increase with:-
Write three differences between physisorption and chemisorption.
Assertion A : Activated charcoal adsorbs SO2 more efficiently than CH4.
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.
Which of the following statements is incorrect regarding physisorptions?
