Download OU B.Sc Life Sciences 2nd Sem Chemistry II Important Questions

FirstRanker.com

Subject Title: Chemistry II Prepared by: K Sunitha

Year: 1st Semester: II Updated on:11-02-2020

--- Content provided by FirstRanker.com ---

Unit - I: Inorganic Chemistry

1. What are oxides? How are they classified? Explain the structures of oxides of Carbon & phosphorous.
2. What are inter halogens? Explain the structure of ICl₂, IF₅, IF₇.
3. What are poly halides? Give a note of structures of ICl₂^-, ICl₄^- and I₃^-
4. What are pseudo halogens? How are they differed from halogens.

--- Content provided by⁠ FirstRanker.com ---

5. What are clathrate compounds? Give examples.
6. Give a note on Halides of Xe.
7. Explain the structure of XeO₃ & XeO₄.
8. Explain the structure of Oxyacids of Xe.
9. Give Electronic configurations of
   

   --- Content provided by‍ FirstRanker.com ---

   a. Ruthenium b. Silver c. Platinum d. Gold
10. Explain the magnetic properties of Transition elements?
11. Explain the stability of various oxidation states in transition elements?
12. How 2^nd and 3^rd transition series differs with 3d series
13. Give a note on Cr & Cu triads?

--- Content provided by FirstRanker.com ---

14. Give a note on Ti triads?

UNIT-II. Organic chemistry

16. Explain SN1 mechanism and its stereochemistry?
17. Give a note on energy profile diagram of SN1 & SN2 respectively?
18. Explain SN2 reaction mechanism with stereochemistry?

--- Content provided by FirstRanker.com ---

19. Give a note on Recemisation and walden inversion?
20. Give a note on ease of hydrolysis of Alkyl halides?
21. How RMgX is formed from Alkyl halides? Give an examples
22. How 1°,2° and 3°alkyl halides are prepared?
23. Explain the acidic nature of phenols?

--- Content provided by FirstRanker.com ---

24. Give a mechanism of oppenauer oxidation?
25. Explain following reaction mechanism
    a. Reimer-Tiemer reaction b. Kolbe electrolysis mechanism
26. Give a note on Electrophilic reaction mechanism in phenols
27. Give a note on following
    

    --- Content provided by FirstRanker.com ---

    a. Azo-coupling b. Gattermann-koch mechanism
28. Give a note on willimson’s synthesis?
29. How alcohols are prepared from Grignard reagent
30. How phenols are prepared from diazonium salts and cumene hydroperoxides?
31. How carbonyl compounds are prepared from
    

    --- Content provided by⁠ FirstRanker.com ---

    A. Acid chlorides B. 1,3- dithials
32. Give chemical reactions of
    A. Cannizaro reaction B. Hemi acetal and C. acetal formation
33. Give chemical reactions for reduction of carbonyl compounds, carboxylic acides and esters?

UNIT - 3: (physical chemistry) Electrochemistry

--- Content provided by FirstRanker.com ---

34. Define the following
    a. Specific conductance b. Equivalent conductance
35. What is Migration of ions?
36. State and explain Kholraussch’s law
37. Explain Arhenius theory of electrolysis dissociation

--- Content provided by⁠ FirstRanker.com ---

38. State and explain Ostwald’s dilution law?
39. Explain debye-Huckel onsagar’s equation for strong electrolytes?
40. What is Transport number? How it is determined by Hittorf's method?
41. Give a note on degree if dissociation
42. Explain the construction of Galvanic cell

--- Content provided by FirstRanker.com ---

43. Explain the construction of Gas electrodes?
44. Explain the construction of standard hydrogen electrode?
45. What are potentiometric titrations?

FirstRanker.com

UNIT-4 (General chemistry)

--- Content provided by FirstRanker.com ---

46. What are indicators? How are they selected?
47. What are titrations? Explain the types?
48. Explain the theories of indicators?
49. What are complexometric titrations? Give the structure of EBT, fast sulphon black & murexide indicators?
50. Explain the role of p^H in complexeometric titrations?

--- Content provided by‍ FirstRanker.com ---

51. How Ni⁺⁺ is determined by gravimetry?
52. Define a. wave length
    b. Plane of polarized light
    c. Optical rotation d. Specific rotation
53. Explain centre and S_n axis of symmetry with examples

--- Content provided by⁠ FirstRanker.com ---

54. D,L configuration with examples
55. R, S configurations with examples?
56. What are colligative properties
57. State and explain Raoult’s law?
58. What is osmotic pressure? How it is determined?

--- Content provided by‌ FirstRanker.com ---

59. What is Elevation in boiling point? How molecular weight can be calculated?
60. What is depression in freezing point

FirstRanker.com