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NCERT-SURFACE CHEMISTRY-Exercise
- Why is it essential to wash the precipitate with water before estimati...
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- Distinguish between the meaning of the terms adsorption and absorption...
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- Write differences between physisorption and chemisorption.
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- Give reason why a finely divided substance is more effective as an ads...
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- What are the factors which influence the adsorption of a gas on a soli...
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- What is an adsorption isotherm? Describe Freundlich adsorption isother...
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- What do you understand by activation of adsorption ? How is it achieve...
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- What role does adsorption play in heterogeneous catalysis ?
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- Why is adsorption always exothermic ?
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- How are the colloidal solutions classified on the the basis of physica...
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- Discuss the effect of pressure and temperature on the adsorption of ga...
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- What are lyophilic and lyophobic sols?Give one example of each type ? ...
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- What is the difference between multimolecular and macromolecular colli...
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- What are enzymes ? Write in brief the mechanism of enzyme catalysis ?
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- How are colloids classified on the basis of (i) physical states of c...
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- Explain what is observed (i) when a beam of light is passed through ...
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- What are emulsions ? What are their different types ? Give an example ...
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- How do emulsifiers stabilise emulsion ? Name two emulsifiers.
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- Action of soap is due to emulsification and micelle formation. Comment...
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- Give four examples of heterogeneous catalytic reactions.
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