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Metals and Non-...

TIME LEFT - 09:59 MIN
  • Question 1
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    Food cans are coated with tin and not with zinc because:

  • Question 2
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    Which one is not used for reduction?

  • Question 3
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    Monoclinic is the:

  • Question 4
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    Non-metals do not replace hydrogen from acids because:

  • Question 5
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    Statement A: Many compounds containing sulphur are used as medicines.

    Statement B: Cast iron contains 3-5% carbon.

  • Question 6
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    Match the following with the correct response:

    (1) Liquid metal (A) Silver
    (2) Best conductor of heat (B) Sodium
    (3) Poorest conductor of heat (C) Lead
    (4) Metal that can be cut with a knife (D) Mercury

  • Question 7
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    Match the following with the correct response:

    (1) Calcination (A) Reduction by carbon
    (2) Roasting (B) Absence of air
    (3) Smelting (C) Exothermic
    (4) Thermite reaction (D) Excess of air

  • Question 8
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    Match the following with the correct response:

    (1) Bauxite (A) Silver
    (2) Hematite (B) Iron
    (3) Galena (C) Aluminium
    (4) Argentite (D) Lead

  • Question 9
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    Match the following with the correct response:

    (1) Enrichment of ore (A) Froth floatation process
    (2) Extraction of metals (B) Reduction by carbon
    (3) Conversion of oxide form to the metallic form (C) Roasting
    (4) Refining of metals (D) Electrolysis

  • Question 10
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    Match the following with the correct response:

    (1) Bronze (A) Iron
    (2) Stainless steel (B) Aluminium
    (3) Solder (C) Tin and lead
    (4) Duralumin (D) Copper

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