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Metals and Non-...

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  • Question 1
    1 / -0

    Which metal is used to connect solar cell to solar panels?

  • Question 2
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    During extraction of metals, electrolytic refining is used to obtain pure metals. Material which will be used as anode, for refining of silver metal by this process, is:

  • Question 3
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    Which of the following metal occur in the native form?

  • Question 4
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    2 ml each of concentrated $$HCl$$, $$HNO_{3}$$ and a mixture of concentrated $$HCl$$ and concentrated $$HNO_{3}$$ in the ratio of 3 : 1 were taken in test tubes labelled as A, B and C. A small piece of metal was put in each test tube. No change occurred in test tubes A and B but the metal got dissolved in test tube C respectively. The metal could be :

  • Question 5
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    Non-metals are usually poor conductors of heat and electricity. They are non-lustrous, non-sonorous, non-malleable, and are colored.
    Non-metal which is required for combustion is ______________.

  • Question 6
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    Which of the following metals exist in their native state in nature?
    (i) Ca
    (ii) Au
    (iii) Zn
    (iv) Ag

  • Question 7
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    Reaction of metals with sulphuric acid produced :

  • Question 8
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    Which of the following metals gives hydrogen with dil. $$HNO_{3}$$?

  • Question 9
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    Name two product of the given reaction.

    $$Zn   + \underset{(Steam)}{H_2O}    \rightarrow       $$

  • Question 10
    1 / -0

    A metal which reacts with cold water vigorously producing hydrogen is:

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