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91
Which of the following is made up of calcium.
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Answer: Option A
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92
Chemical Formula of Iron (III) Oxide . . . . . . . . is.
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Answer: Option B
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93
What products are formed when ferrous sulphate crystals are heated in a test tube?
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Answer: Option C
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94
Galvanization is a corrosion-resistant process using a coating of . . . . . . . . on steel and iron.
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Answer: Option D
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95
Cinnabar is an ore of . . . . . . . .?
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Answer: Option C
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96
Which of the following substances is used to make the heating element of iron?
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Answer: Option B
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97
Which of the following elements is a liquid at room temperature?
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Answer: Option B
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98
Which of the following metals is stored in kerosene?
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Answer: Option C
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99
Displacement of . . . . . . . . occurs when zinc is added to copper sulphate solution.
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Answer: Option D
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100
Which of the following metals exists in liquid state?
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Answer: Option C
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