Chemistry – General – LS
Chemistry – Set 6
Dear ! This is Chemistry – Set 6 Quiz and it contains 100 questions.
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3. Bauxite is used as raw material by which industry ?
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5. Glycol is added to aviation gasoline because it
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7. Nitrogen in water is commonly found in the form of
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8. Among the following iron ores, the highest percentage of iron content is found in–
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12. Bauxite is an alloy of which of the following metals ?
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13. The most abundant metal in the Earth’s crust is
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16. The important metal used with iron to produce stainless steel is
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17. The substance which does not expand on going from liquid state to solid state is
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18. Brass is made of
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20. Which one of the following is not a characteristic feature of alloys?
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21. What is the mass percentage of oxygen in carbon dioxide (CO2)?
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22. Gold dissolves in
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23. Which of the following metals occurs in free state ?
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26. Hydrochloric acid is also known as
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28. What is the mass percentage of carbon in carbon dioxide (CO2)?
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29. Of the following commonly used materials, the one that is not an alloy is
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33. An alloy used in making heating elements for electric heating device is
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34. The ore of Aluminium is
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36. Which of the following metals has least melting point ?
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37. The metal extracted from Bauxite is :
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38. Food cans are coated with tin and not with zinc because
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39. Among the following the hardest metal is
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40. Which one of the following minerals is found in pure form?
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41. The most important ore of lead is
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42. Which one of the following contains maximum percentage of carbon ?
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44. Electrolysis of an aqueous solution of copper sulphate using copper electrodes gives
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46. Which is the purest commercial form of iron ?
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47. Phosphorus is kept in water because
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51. Aluminium can be purified by
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52. Copper is refined by
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53. Burning pyrites ore gives out
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56. Bronze is an alloy of
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58. Epsom salt is used
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60. Freon used as refrigerant is chemically
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62. Iron is extracted from
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63. Which is the purest form of iron?
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64. The percentage of carbon in cast iron is :
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65. Which of the following metals form an amalgam with other metals ?
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66. The element which is used for vulcanizing rubber
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67. The value of Avogadro Number is
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68. Which among the following is found in chlorophyll ?
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72. The iron ore which contains 72% of iron is :
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73. Which is the heaviest metal among the following?
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74. The acid which is secreted by the glands in the stomach wall is
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75. Which one of the following pairs is not correctly matched?
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76. Brass is an alloy of
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78. Bleaching powder is prepared by passing :
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79. Most commonly used bleaching agent is
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80. The wire of flash bulbs is made up of
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82. Slag is a name given for
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84. Cinnabar is an ore/mineral of
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86. Which of the following is a metallic ore ?
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88. Hard steel contains
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90. Heating of a ore below its melting point in the absence of air is known as
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91. The important ore of aluminium is
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92. Steel contains
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93. The manufacture of iron from iron ore involves the process of
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97. Which mineral is the ore of aluminium ?
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98. Galvanised iron is made by coating iron with
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99. Brass is an alloy of :
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