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What is the difference when a concentrat...

What is the difference when a concentrated solution of KCl is shaken with blood charcoal in one case and a dilute solution of KCl in the second case ?

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With concentrated solution, there is positive adsorption but with dilute solution, there is negative adsorption.
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PRADEEP-SURFACE CHEMISTRY -CONCEPTUAL QUESTIONS
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  2. In which of the following does adsorption take place and why? (i) Si...

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  3. How is adsorption of a gas related to its critical temperature ?

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  4. Adsorption of a gas on the surface of solid is sgenerally accompanied ...

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  5. Which will be adsorbed more readily on the surface of charcoal and why...

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  6. How do size of particles of adsorbent, pressure of gas and prevailling...

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  7. How can the constants k and n of the freundlich adsorption equation be...

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  8. What from Freundich adsorption isotherm equation will take at high pre...

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  9. In the case of chemisorption, why adsorption first increases and then ...

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  10. Why is silica gel used as a dehumidizer?

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  11. What type of building blocks are present in the structure of zeolites?...

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  12. Name tow physical quantities that remain unaffected when a reversible ...

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  13. What is the effect of catalyst on: (i) Gibbs energy (DeltaG) and (...

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  14. What is the difference in the nature of a dilute soap solution and a c...

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  15. What is the difference between a colloidal solution, gel, and emulsion...

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  16. Why lyophilic colloidal sols are more stable than lyophobic collodial ...

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  17. What type of colloidal sols are formed in the following: a. Sulphur ...

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  18. What is common in aqua sols and solid aerosol? How do they differ?

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  19. What happens when persistent dialysis of colloidal solution is carried...

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  20. Frequently, preparation of a colloid such as a protein can be made mor...

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