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Materials Metal...

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  • Question 1
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    The corrosion of iron can be avoided by

  • Question 2
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    When combined chemically with metal atoms, non-metal atoms tend to

  • Question 3
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    Which of the following halogens is used as an antiseptic in an alcoholic solution?

  • Question 4
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    Which among the following is an example of an alloy?

  • Question 5
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    Which of the following compositions represents the German silver alloy?

  • Question 6
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    On burning, metals react with oxygen to produce

  • Question 7
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    Which among the following is a noble metal?

  • Question 8
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    Which of the following statements is/are false?

    a. The acidic, non-metal oxides turn blue litmus red.
    b. Sulphur and phosphorus are the non-metals that are used in fireworks.
    c. Non-metals react with dilute acids.

  • Question 9
    1 / -0

    Solution(s) of which of the following with water turn(s) red litmus blue?

    a. Magnesium oxide
    b. Sulphur dioxide
    c. Sodium oxide
    d. Carbon dioxide

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