CBSE Class 12 Chemistry Surface Chemistry Question Bank

Read and download free pdf of CBSE Class 12 Chemistry Surface Chemistry Question Bank. Download printable Chemistry Class 12 Worksheets in pdf format, CBSE Class 12 Chemistry Unit 5 Surface Chemistry Worksheet has been prepared as per the latest syllabus and exam pattern issued by CBSE, NCERT and KVS. Also download free pdf Chemistry Class 12 Assignments and practice them daily to get better marks in tests and exams for Class 12. Free chapter wise worksheets with answers have been designed by Class 12 teachers as per latest examination pattern

Unit 5 Surface Chemistry Chemistry Worksheet for Class 12

Class 12 Chemistry students should refer to the following printable worksheet in Pdf in Class 12. This test paper with questions and solutions for Class 12 Chemistry will be very useful for tests and exams and help you to score better marks

Class 12 Chemistry Unit 5 Surface Chemistry Worksheet Pdf

QUESTION BANK
Surface Chemistry
 
1. What do you mean by the term –Adsorption? 
 
2. Explain the terms – Adsorbate and Adsorbent? 
 
3. Give two differences between adsorption and absorption? 
 
4. Why do finely divided solids act as good adsorbents? 
 
5. What is adsorption isotherm? 
 
6. Give an equation showing variation of extent of adsorption with concentration of a solution?
 
7. What do you mean by the term promoter? Give an example. 
 
8. What is the optimum temperature and pH for enzyme catalysed reactions? 
 
9. What are colloids? 
 
10. Give two examples of solid Sol and Gel? 
 
11. Colloid is a state not a substance. Explain? 
 
12. What are associated colloids? Give an example? 
 
13. What is CMC and Kraft‟s temperature? 
 
14. Define the term peptization? 
 
15. What is observed when light is passed through a colloidal solution? 
 
16. State Hardy- Schulze rule? 
 
17. What is a protective colloid?
 
18. Alum is used for purification of water. Why? 
 
19. What are the two types of emulsions? 
 
20. Why does a gas mixed with another gas not form a colloidal system? 
 
21. Explain the terms sorption and desorption. 
 
22. “Chemisorption is highly specific.” Illustrate with an example. 
 
23. “Adsorbents in finely divided form are more effective.” Why? 
 
24. „Generally high temperature is favourable for chemisorption.‟ Why? 
 
25. Name the catalyst used in the following process :
(a) Haber‟s process for the manufacture of NH3 gas.
(b) Ostwald process for the manufacture of nitric acid.
 
26. Why gas masks are used by miners in coal mines while working? 
 
27. Write the chemical reaction involved in the preparation of sulphur sol.
 
28. Name the enzyme which converts milk into curd. 
 
29. What are the optimum temperature and pH at which enzymes are highlyactive. 
 
30. What is the composition of colloidion solution? 
 
31. Why do colloidal particles show Brownian movement? 
 
32. Why does sky appear blue to us? 
 
33. What happens when hydrated ferric oxide and arsenioussulphide sols are mixed in almost equal proportions?
 
34. Gelatin is generally added to ice-cream. Why? 
 
35. Mention the two conditions for the formation of micelles. 
 
36. How is Brownian movement responsible for the stability of sols? 
 
37. Which of the following is more effective in coagulating positively charged hydrated ferric oxide sol :
(i) KCl     (ii) CaSO4     (iii) K3 [Fe(CN)6].
 
38. Mention one use of ZSM–5 catalyst. 
 
39. Define the term – desorption? 
 
40. Write the four differences between physisorption and chemisorption? 
 
41. „Adsorption is an exothermic process „. Explain. 
 
42. What is the sign of ΔH, ΔS and ΔG when a gas is adsorbed by an adsorbent? 
 
43. (a) Which gas is adsorbed more readily on charcoal lump: ammonia or carbondioxide and why ?
(b) Which adsorbs more of carbon monoxide:charcoal lump or charcoal powder& why?
 
44. Name the factors which influence the extent of adsorption of a gas on solid. 
 
45. Explain Freundlich adsorption isotherm 
 
46. Define the terms – catalysis and catalyst. 
 
47. What is meant by activity and selectivity of a catalyst? 
 
48. What is shape – selective catalysis? Give an example of shape selective catalyst. 
 
49. Give two examples of enzyme catalysed reaction 
 
50. Explain the mechanism of enzyme catalysis. 
 
51. Differentiate between multimolecular and macromolecular colloid? 
 
52 Write the equation for formation of
(a) Sulphur sol.
(b) Ferric hydroxide sol.
 
53. How is a colloidal solution purified by dialysis?
 
54. Define the terms – (a) Brownian movement (b) Electrophoresis? 
 
55. How does an emulsifying agent work? Give an example of emulsifying agent. 
 
56. Explain the effect of temperature on the extent of physical and chemicaladsorption. 
 
57. Define the term peptization and mention its cause. 
 
58. In what way these are different : (a) a sol and a gel (b) a gel and an emulsion. 
 
59. Define the terms :
(a) Helmholtz electrical double layer.
(b) Zeta potential.
 
60. Mention the two necessary conditions for the observation of Tyndall Effect 
 
61. Account for the following :
(a) Artificial rain can be caused by spraying electrified sand on theclouds.
(b) Electrical precipitation of smoke.
 
62. Write chemical equations for the preparation of sols :
(a) Gold sol by reduction.
(b) Hydrated ferric oxide sol by hydrolysis.


Please click on below link to download CBSE Class 12 Chemistry Surface Chemistry Question Bank

Unit 01 The Solid State
CBSE Class 12 Chemistry Solid State Question Bank
CBSE Class 12 Chemistry Solid State Question Bank Set A
CBSE Class 12 Chemistry Solid State Question Bank Set B
CBSE Class 12 Chemistry Solid State Worksheet
CBSE Class 12 Chemistry The Solid State Worksheet Set A
CBSE Class 12 Chemistry The Solid State Worksheet Set B
Unit 03 Electrochemistry
CBSE Class 12 Chemistry Electrochemistry Question Bank
CBSE Class 12 Chemistry Electrochemistry Question Bank Set A
CBSE Class 12 Chemistry Electrochemistry Question Bank Set B
CBSE Class 12 Chemistry Electrochemistry Question Bank Set C
CBSE Class 12 Chemistry Electrochemistry Worksheet Set A
CBSE Class 12 Chemistry Electrochemistry Worksheet Set B
CBSE Class 12 Chemistry Electrochemistry Worksheet Set C
Unit 04 Chemical Kinetics
CBSE Class 12 Chemistry Chemical Kinetics Question Bank Set A
CBSE Class 12 Chemistry Chemical Kinetics Question Bank Set B
CBSE Class 12 Chemistry Chemical Kinetics Worksheet
CBSE Class 12 Chemistry Chemical Kinetics Worksheet Set A
CBSE Class 12 Chemistry Chemical Kinetics Worksheet Set B
CBSE Class 12 Chemistry Chemical Kinetics Worksheet Set C
CBSE Class 12 Chemistry Chemical Kinetics Worksheet Set D
Unit 05 Surface Chemistry
CBSE Class 12 Chemistry Surface Chemistry Question Bank
CBSE Class 12 Chemistry Surface Chemistry Question Bank Set A
CBSE Class 12 Chemistry Surface Chemistry Question Bank Set B
CBSE Class 12 Chemistry Surface Chemistry Worksheet Set A
CBSE Class 12 Chemistry Surface Chemistry Worksheet Set B
CBSE Class 12 Chemistry Surface Chemistry Worksheet Set C
CBSE Class 12 Chemistry Surface Chemistry Worksheet Set D
CBSE Class 12 Chemistry Surface Chemistry Worksheet Set E
Unit 06 General Principles and Processes of Isolation of Elements
CBSE Class 12 Chemistry General principles and Processes of isolation of elements Question Bank
CBSE Class 12 Chemistry General Principles and Processes of Isolation of Elements Worksheet Set A
CBSE Class 12 Chemistry General Principles And Processes of Isolation of Elements Worksheet Set B
CBSE Class 12 Chemistry General Principles And Processes of Isolation of Elements Worksheet Set C
CBSE Class 12 Chemistry General Principles And Processes of Isolation of Elements Worksheet Set D
CBSE Class 12 Chemistry General Principles And Processes of Isolation of Elements Worksheet Set E
Unit 07 The p-Block Elements
CBSE Class 12 Chemistry The P Block Elements Question Bank
CBSE Class 12 Chemistry The P Block Elements Question Bank Set A
CBSE Class 12 Chemistry The P Block Elements Question Bank Set B
CBSE Class 12 Chemistry The p Block Elements Worksheet Set A
CBSE Class 12 Chemistry The p Block Elements Worksheet Set B
CBSE Class 12 Chemistry The p Block Elements Worksheet Set C
CBSE Class 12 Chemistry The P Block Elements Worksheet Set E
CBSE Class 12 Chemistry The P Block Elements Worksheet Set F
Unit 08 The d- and f-Block Elements
CBSE Class 12 Chemistry All Chapters Solved Worksheet
CBSE Class 12 Chemistry D And F Block Elements Question Bank Set A
CBSE Class 12 Chemistry D And F Block Elements Question Bank Set B
CBSE Class 12 Chemistry D And F Block Elements Worksheet Set A
CBSE Class 12 Chemistry D And F Block Elements Worksheet Set B
CBSE Class 12 Chemistry D And F Block Elements Worksheet Set C
CBSE Class 12 Chemistry Organic Compounds Containing Nitrogen Worksheet
CBSE Class 12 Chemistry The D Block Elements Worksheet
CBSE Class 12 Chemistry The d and f Block Elements Worksheet Set A
CBSE Class 12 Chemistry The d and f Block Elements Worksheet Set B
Unit 09 Coordination Compounds
CBSE Class 12 Chemistry Coordination Compounds Question Bank Set A
CBSE Class 12 Chemistry Coordination Compounds Question Bank Set B
CBSE Class 12 Chemistry Coordination Compounds Worksheet Set A
CBSE Class 12 Chemistry Coordination Compounds Worksheet Set B
CBSE Class 12 Chemistry Coordination Compounds Worksheet Set C
CBSE Class 12 Chemistry Coordination Compounds Worksheet Set D
CBSE Class 12 Chemistry Coordination Compounds Worksheet Set E
Unit 10 Haloalkanes and Haloarenes
CBSE Class 12 Chemistry Haloalkanes And Haloarenes Question Bank Set A
CBSE Class 12 Chemistry Haloalkanes And Haloarenes Question Bank Set B
CBSE Class 12 Chemistry Haloalkanes and Haloarenes Worksheet Set A
CBSE Class 12 Chemistry Haloalkanes and Haloarenes Worksheet Set B
CBSE Class 12 Chemistry Haloalkanes And Haloarenes Worksheet Set C
CBSE Class 12 Chemistry Haloalkanes And Haloarenes Worksheet Set D
CBSE Class 12 Chemistry Haloalkanes And Haloarenes Worksheet Set E
Unit 11 Alcohols, Phenols and Ethers
CBSE Class 12 Chemistry Alcohols Phenols And Ethers Question Bank
CBSE Class 12 Chemistry Alcohols Phenols and Ethers Worksheet Set A
CBSE Class 12 Chemistry Alcohols Phenols And Ethers Worksheet Set B
CBSE Class 12 Chemistry Alcohols Phenols And Ethers Worksheet Set C
CBSE Class 12 Chemistry Alcohols Phenols And Ethers Worksheet Set D
CBSE Class 12 Chemistry Alcohols Phenols And Ethers Worksheet Set E
Unit 12 Aldehydes, Ketones and Carboxylic Acids
CBSE Class 12 Chemistry Aldehydes Ketone and Carboxylic Acids Worksheet Set A
CBSE Class 12 Chemistry Aldehydes Ketone and Carboxylic Acids Worksheet Set B
CBSE Class 12 Chemistry Aldehydes Ketones And Carboxylic Acids Question Bank Set A
CBSE Class 12 Chemistry Aldehydes Ketones And Carboxylic Acids Question Bank Set B
CBSE Class 12 Chemistry Aldehydes Ketones And Carboxylic Acids Question Bank Set C
CBSE Class 12 Chemistry Aldehydes Ketones And Carboxylic Acids Question Bank Set D
CBSE Class 12 Chemistry Aldehydes Ketones And Carboxylic Acids Question Bank Set E
Unit 13 Amines
CBSE Class 12 Chemistry Amines Worksheet Set A
CBSE Class 12 Chemistry Amines Worksheet Set B
CBSE Class 12 Chemistry Amines Worksheet Set C
CBSE Class 12 Chemistry Amines Worksheet Set D
CBSE Class 12 Chemistry Amines Worksheet Set E
Unit 14 Biomolecules
CBSE Class 12 Chemistry Biomolecules Question Bank Set A
CBSE Class 12 Chemistry Biomolecules Question Bank Set B
CBSE Class 12 Chemistry Biomolecules Worksheet Set A
CBSE Class 12 Chemistry Biomolecules Worksheet Set B
CBSE Class 12 Chemistry Biomolecules Worksheet Set C
CBSE Class 12 Chemistry Biomolecules Worksheet Set D
Unit 15 Polymers
CBSE Class 12 Chemistry Polymers Worksheet Set A
CBSE Class 12 Chemistry Polymers Worksheet Set B
CBSE Class 12 Chemistry Polymers Worksheet Set C
CBSE Class 12 Chemistry Polymers Worksheet Set D
Unit 16 Chemistry in Everyday Life
CBSE Class 12 Chemistry Chemistry in Everyday Life Question Bank
CBSE Class 12 Chemistry Chemistry in Everyday Life Worksheet Set A
CBSE Class 12 Chemistry Chemistry in Everyday Life Worksheet Set B
CBSE Class 12 Chemistry In Everyday Life Question Bank
CBSE Class 12 Chemistry In Everyday Life Worksheet Set A
z More Worksheets for Class 12 Chemistry
CBSE Class 12 Chemistry All Chapters Questions Bank
CBSE Class 12 Chemistry Solution Question Bank
CBSE Class 12 Chemistry Solutions Question Bank Set A
CBSE Class 12 Chemistry Solutions Question Bank Set B
CBSE Class 12 Chemistry Solutions Worksheet
CBSE Class 12 Chemistry Solutions Worksheet Set A
CBSE Class 12 Chemistry Solutions Worksheet Set B
CBSE Class 12 Chemistry Worksheet Set A Solved
CBSE Class 12 Chemistry Worksheet Set B Solved
CBSE Class 12 Chemistry Worksheet Set C Solved
CBSE Class 12 Chemistry Worksheet Set D
CBSE Class 12 Chemistry Worksheet Set E Solved
CBSE Class 12 Chemistry Worksheet Set F
CBSE Class 12 Chemistry Worksheet Set G Solved
CBSE Class 12 Chemistry Worksheet Set H Solved
CBSE Class 12 Chemistry Worksheet Set I Solved

Unit 5 Surface Chemistry CBSE Class 12 Chemistry Worksheet

The above practice worksheet for Unit 5 Surface Chemistry has been designed as per the current syllabus for Class 12 Chemistry released by CBSE. Students studying in Class 12 can easily download in Pdf format and practice the questions and answers given in the above practice worksheet for Class 12 Chemistry on a daily basis. All the latest practice worksheets with solutions have been developed for Chemistry by referring to the most important and regularly asked topics that the students should learn and practice to get better scores in their examinations. Studiestoday is the best portal for Printable Worksheets for Class 12 Chemistry students to get all the latest study material free of cost. Teachers of studiestoday have referred to the NCERT book for Class 12 Chemistry to develop the Chemistry Class 12 worksheet. After solving the questions given in the practice sheet which have been developed as per the latest course books also refer to the NCERT solutions for Class 12 Chemistry designed by our teachers. After solving these you should also refer to Class 12 Chemistry MCQ Test for the same chapter. We have also provided a lot of other Worksheets for Class 12 Chemistry which you can use to further make yourself better in Chemistry.

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