Amalgams are
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Which of the following is the lightest metal?
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Which of the following metals remain in liquid for under normal conditions?
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Potassium Permanganate is used for purifying drinking water, because
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Which of the following is an element?
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What is laughing gas?
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From which mineral is radium obtained?
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Which of the following are the ingredients of gun metal?
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Sodium metal is kept under
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Which of the following is in liquid form at room temperature?
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Most soluble in water is
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The most important ore of aluminium is
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Soda water contains
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Permanent hardness of water may be removed by the addition of
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