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NCERT TELUGU-SURFACE CHEMISTRY-Exercise
- Distinguish between adsorption and absorption. Give one example of eac...
04:27
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- What is difference between physisorption and chemisorption ?
07:33
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- Why are finely powdered substances more effective adsorbents than thei...
03:09
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- What are the factors which influence the adsorption of a gas on a soli...
01:10
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- What is an adsorption isotherm ? Write the equation of Freundlich adso...
02:11
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- What do you understand by activation of adsorbent? How is it achieved ...
03:13
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- What role does adsorption play in heterogenous catalysis ?
01:57
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- Why is adsorption always exothermic?
01:32
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- How are colloids classified on the basis of interaction between dispe...
04:11
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- Discuss the effect of pressure and temperature on the adsorption of ga...
02:05
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- What are lyophilic and lyophobic sols ? Give one example for each type...
03:35
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- What is the dlfferenee between multmolecular and macromolecular colloi...
02:41
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- What are enzymes ? Give examples ?
05:20
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- How are colloids classified on the basis of (i) physical states of...
03:43
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- Explain what is observed (i) when a beam of light is passed throug...
02:33
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- What are emulsions? What are their different types? Give example of ea...
02:22
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- What is demulsification ? Name two demulsifiers.
02:37
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- Action of soap is due to emulsification and micelle formation. Comment...
04:33
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- Give two examples for heterogeneous catalysis.
04:22
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- What do you mean by activity and selectivity of catalyst ?
07:18
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