Most Repeated 2nd Year chemistry Questions in past papers || 2nd Chemistry Most Important Short Questions

2nd  Year Short Questions (Most Repeated Questions in Past Papers) Most Repeated ALP short Questions According to ALP snart Syllabus 2021.

1. Give various allotropic forms of Group VIA elements

2. Give optimium conditions for manfactures of sulphuric acid in contact process?

3. Give definition of allotropy. Write allotropes of phosphorus?

4. Outline any four uses of aluminum. 

5. What is the utility of reaction of Al with O2.

6. What is the borax?  

7. Write four important ores of menesium. 

8. What are the colours of flame of alkali metals in the flame test?

9. What are S- black elements! 

10. What Is election affinity? 

11. Why first ionization energy of Mg is greater than that of Na? 

12. What is ionization energy?

13. What is Newlands's law octaves?

14. What is meant by shielding effect! 

15. What is vital forces theory? How It was rejected?

16. What is the composition of natural gas? 

17. What are the main sources of organic compounds? 

18. What do you mean by steam cracking? 

19. What do you mean by knocking of petroleum? 

20. Give (our properties of transition element. 

21. Why d-and-block elements are called transition produced? 

22. Why does damaged tin plated iron get rusted 

23. What is de transition? 

24. What do you mean by cathole coating? 

25. Give reaction of bleaching powder with 

26. Why the oxyacids of chlorine ne stranger than sulphonic acid?

27. Why boiling point of HF is much higher than those

28. Hydrogen halides acl as reducing cents. Justify.

29. Define nuclcopiile and subsinle with an example. clements 

30. Give general mechanism of Sul reaction.. What is the optimum condition for the 

31. What are nucleophilie substitution reaction? manufacture of H2SO, in contact process. 

32. Convert ethyl chloride into i)Ethane  33. What is elimination reaction? Give in comple. of phosphorus 

34. Write down mechanism for halogenation of benzene 

35. Conyeri heplane into toluenc. 

36. Give two addition reactions of benzene. 

37. How toluene can be converted into benzoic acid? 

38. What is meant by ortho and para directing groups? the flame lesi? 

39. Give importance of lindler's catalyst.

40. Mention (our uses of ethane. 

41. Describe how we can distinguish between thane and ethane. 

42. How alkenes are prepared by dehalogenation of vicinal dilalidex?  

43. What are fertilizers? Why are they needed! 

44. What is importance of potassiuin lentilizer? 

15. What do you mean by prilling of uren? 

16. What is phosphate fertilizer? 

47. What are fatty acids? GIVE AN EXAmple. 

48. Write down the names of the following compolinds by IUPAC system. 

49. What are acid anhydrides and how are they elements? 

50. What is sodium bisulphite test? 

S1. What is benddict's solution test? quickly? 

52. Write Ichline's solution lesi 

53. Give uses of acetaldehyde. 

54. What is aldol condensation! Give one example.

55. What formula of carbolic acid and its one ise NH, and HCL 

56. How will you phenol from sodium salt of benzene  oxyacids of brumine? 

57. Give importance of lindler's catalyst  

58. Mention four uses of ethane. of other hydrogen holides?  

59. What is isomerism? Give names of four types of structural isomerisme 

60. Define automerism with example. 

61. What do you mean by knocking of petroleum? 

62. Why transition elements show variable valencies? 

63. Why does damaged tin plated iron get rusted quickly? 

64. What is d-d transition? 

65. Write hiny iwo methods for the preparation of chlorine dioxide. 

66. Describe available chlorine with reactions. 

67. Why He is stronger acid than other halogen acids. 

68. What is formula of bleaching powder? Write a chemical equation for its preparation. 

69. Name the factors on which oxidizing power of halogens depend? 

70. Why fluorine acts as a strong oxidizing agents. 

71. Write any four important uses of H., SO. 

72. How does sulphuric acid reacts with Fe and Zn. 

73. How does aluminum react with non-metals? 

74. Write four uses of alumALITI. 

75. Write down the chemical formulas of minerals. 

76. What is the borax? 

77. What are the colors of flames of alkali metals in the flame test? 

78. Why ionization energy decreases down the group and incre:Lses alone i penod. 

79. What is the role of decomposition and huming zond in the manufacturing of cement? 

80. What reaction take place in the setting of ceinent from Ol to 7 days? 

81. Define cement give the averige composition of two major components. 

82. Drw flow slicct diam for the manufacture of cement.

83. How do carboxylic acid are prepared from sideliydes? 

81. What are acid anhydrides and how are they produced? 

85. What is glacial acetic acid? 86. Which exter give banana and onge smell? 

87. How accials are commed? 88. How hydrazine reacts with acclone? 

89. What type of aldehyde giye aldol condensation reaction? Give example. 

90. Whoy tollen s test is also called Silver MUITOT tesi? 

91. Wht is a canzo's Taction and what types of reaction is it? 

92. Indicale thice idactions of alcohols in which 0-H bond is broken? 

93. Why primary alcohols especially metlunol is more reactive than other alcohols when in electronphile attacks on 

94. How can michuanol and ethanol be identified by odoform test? 

95. What are mucleophillie substitution dictions? 

96. How teramenthly lead and temethyl lead an be prepared from an alkyl halide? 

97. Deline nucleopule and substrate with merample. 

98. Write reactions of conversion of benzene ito maleic acid 

99. Confirm by two reactions the presence of three altcrialc double bonds in benzene. 

100. Give nume and structure of one bicyclic and tricyclic aromátic hydrocarbons.