1. Saccharin is made up of

3. Antacid tablets consist of

5. Stains of rust on clothes can be removed by :

6. Aquaregia is a mixture of the following in the ratio 1 : 3 by volume

7. Total number of halogen elements found in the periodic table is

8. One of the following is used to dissolve noble metals. That is

9. Adding Cl₂ to benzene in the presence of AlCl₃ is an example of :

13. Which one is the most reactive halogen?

14. The gas used in the artificial ripening of fruits is

15. The most suitable vessel for storing concentrated sulphuric acid is

17. The natural source of hydrocarbon is

18. Alcoholic (– OH) group can be identified by :

19. The gas produced in marshy places due to decomposition of vegetation is

22. Detergents are

23. Which of the following is not a natural source of hydrocarbon?

24. One of the constituents of tear gas is

25. Synthetic detergents are prepared from

27. Benzene cannot undergo :

28. The common refrigerant in domestic refrigerator is

29. The element used in the manufacture of safety matches is

30. The elements with atomic numbers 9, 17, 35, 53, 85 are all

32. The next higher homologue of C₆H₁₄ is

33. The chemical used for cloud seeding for artificial rains is

34. Ethanol containing 5% water is known as :

35. This group of alumino-silicate minerals is widely used in making electrical insulators

37. Which of the following elements is found in all organic compounds?

38. Substance used as an anti freeze in radiators of automobiles is :

39. Choose the incorrect statement pertaining to organic compounds

40. Electric fuse is an alloy of

42. The gas which emits from rice field is

43. KMnO₄ can be used as

44. By which organic compound all the oils are known ?

45. Commonly used antiseptic ‘Dettol’ is a mixture of

47. Detergents used for cleaning clothes and utensils contain

49. DDT and BHC may act as

50. Commercial nitric acid is coloured because it contains dissolved :

55. Which of the following is used as anesthetic ?

57. The element used for making solar cells is

58. For a spontaneous chemical process, the free energy change is

60. Silver halides are used in photographic plates because they are

63. Which of the following is used to remove ink and rust stains on cloth?

65. The metal compound commonly found in Sindhoor or Kumkum is based on

66. When a bond is formed between two atoms, the energy of the system will

67. Sulphuric acid is

69. The minimum energy required for an effective collision is

70. Commercial Vaseline is derived from

72. Which one of the following nonmetals shows allotropy in the liquid state?

73. Laughing gas is

74. By-product obtained by soap industry is

75. Which of the following chemicals is used in photography ?

76. Vinegar is an aqueous solution of

79. The chemical that is used to ripen mangoes is

80. Which of the following has no unit?

81. The gas used for artificial fruit ripening of green fruit is –

83. Who developed Hydrogen Bomb?

85. Which one is the simplest form of alkane?

86. Who first published the periodic table?

88. Gypsum is used for improvement of:

90. Which of the following is used for refrigeration?

91. Ethylene is a ________ molecule.

93. Alum is used as

94. Chloroform can be used as

95. Which among the following is not a characteristic of transition metals?

96. When conc. H₂SO₄ is added to dry KNO₃, brown fumes are evolved. These fumes are due to

97. Gunpowder consists of a mixture of

98. Wax used for making candle is chemically a mixture of

99. The compound to which H₂ does not add is

100. Aspirin is