1. (c)
2. (b)
3. (b)
4. (c)
5. (b)
6. (a)
7. (b)
8. (b)
9. (d)
10. (a)
11. (c)
12. (d)
13. (b)
14. (b)
15. (a)
16. (b)
17. (d)
18. (a)
19. (b)
20. (c)
21. (a)
22. (a)
23. (a)
24. (b)
25. (b)
26. (a)
27. (c)
28. (c)
29. (c)
30. (b)
31. (d)
32. (b)
33. (a)
34. (b)
35. (b)
36. (c)
37. (a)
38. (a)
39. (b)
40. (b)
41. (d)
42. (b)
43. (b)
44. (c)
45. (d)
46. (c)
47. (b)
48. (c)
49. (b)
50. (b)
51. Endothermic
52. Decomposition
53. Chemical, Physical
54. Heat
55. White Precipitate (Barium Sulphate)
56. Reddish Brown
57. Combination (Oxidation)
58. Nitrogen
59. $CaCO_3$
60. Displacement
61. False (Oxidation is Gain of O2).
62. False (Exothermic).
63. True.
64. True.
65. True.
66. False (Insoluble).
67. True (CaO is used).
68. False (Green).
69. True.
70. True.
71-75.
(i)-(b), (ii)-(e), (iii)-(c), (iv)-(likely b), (v)-(a).
76-80.
(vi-FeSO4)-(c-Green), (vii-NO2)-(d-Brown), (viii-CuO)-(b-Black), (ix-Ag2S)-(e-Blackish),
(x-BaSO4)-(a-White).
81. Hydrogen
82. Hydrated Ferric Oxide
83. Rancidity
84. Law of Conservation of Mass
85. Red
86. (c)
87. (b)
88. (a)
89. (a)
90. (c)
91. (a)
92. (a)
93. (a)
94. (a)
95. (a)
96. (d)
97. (a)
98. (c)
99. (a)
100. (a)
