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Metals and Non-metals Test - 3

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  • Question 1
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    Which of the following metals is present in the anode mud during the electrolytic refining of copper?

  • Question 2
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    An element reacts with oxygen to give a compound with a high melting point. The compound is soluble in water. The element is likely to be

  • Question 3
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    The second most abundant metal in the earth’s crust is

  • Question 4
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    An alloy of Zn and Cu is dissolved in dil. HC1. Hydrogen gas is evolved. In this evolution of gas

  • Question 5
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    A greenish coating develops on copper utensils due to formation of

  • Question 6
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    Rusting of iron takes place in

  • Question 7
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    The bronze medals are made up of

  • Question 8
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    Silver articles becomes black on prolonged exposure to air. This is due to the formation of

  • Question 9
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    During smelting, an additional substance is added which combines with impurities to form a fusible product known as

  • Question 10
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    A student placed an iron nail in copper sulphate solution. He observed the reddish brown coating on the iron nail which is

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