Surface Chemistry part 1
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NCERT Class 12 Chemistry Chapter-wise Solutions
- 1 – The Solid State
- 2 – Solutions
- 3 – Electrochemistry
- 4 – Chemical Kinetics
- 5 – Surface Chemistry
- 6 – General Principles and Processes of Isolation of Elements
- 7 – The p-Block Elements
- 8 – The d-and f-Blocks Elements
- 9 – Coordination Compounds
- 10 – Haloalkanes and Haloarenes
- 11 – Alcohols, Phenols and Ethers
- 12 – Aldehydes, Ketones and Carboxylic Acids
- 13 – Amines
- 14 – Biomolecules
- 15 – Polymers
- 16 – Chemistry in Everyday Life
CHAPTER FIVE SURFACE CHEMISTRY
- 5.1 Adsorption
- 5.2 Catalysis
- 5.3 Colloids
- 5.4 Classification of Colloids
- 5.5 Emulsions
- 5.6 Colloids Around Us
NCERT Solutions class 12 Chemistry Surface Chemistry part 1
1. Distinguish between the meaning of the terms adsorption and absorption. Give one example of each.
2. What is the difference between physisorption and chemisorption?
3. Give reason why a finely divided substance is more effective as an adsorbent.
4. What are the factors which influence the adsorption of a gas on a solid?
5. What is an adsorption isotherm? Describe Freundlich adsorption isotherm.
6. What do you understand by activation of adsorbent? How is it achieved?
7. What role does adsorption play in heterogeneous catalysis?
8. Why is adsorption always exothermic?
9. How are the colloidal solutions classified on the basis of physical states of the dispersed phase and dispersion medium?
0. Discuss the effect of pressure and temperature on the adsorption of gases on solids.
11. What are lyophilic and lyophobic sols? Give one example of each type. Why are hydrophobic sols easily coagulated?
12. What is the difference between multimolecular and macromolecular colloids? Give one example of each. How are associated colloids different from these two types of colloids?
13. What are enzymes? Write in brief the mechanism of enzyme catalysis.
14. How are colloids classified on the basis of
(i) Physical states of components
(ii) Nature of dispersion medium and
(iii) Interaction between dispersed phase and dispersion medium?
covers both organic and inorganic chemistry. Please note that CBSE has reduced the syllabus for class 12 Chemistry. So, you must check the latest syllabus of CBSE while going through the NCERT solution of any chapter given in the class 12 NCERT book.