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German silver, an alloy, does not contain the metal?
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Now-a-days yellow lamps are frequently used as street light. Which of the following gases is used in these lamps?
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Which among the following is liquid non-metal?
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Metals are good conductors, because
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To prevent rancidity of oil (due to oxidation) in which potato chips are fried, the bags of chips are flushed with the gas.
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Process of gaining electrons is known as
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Process of losing electrons is known as
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Anions are formed by
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___________is not a chemical change.
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A radioactive substance has a half life of six months, Three-fourth of the substances will decay in
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