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Discussion :: Building Materials

  1. Pick up the correct statement from the following:

  2. A.

     Roasting is not necessary if iron ore is an oxide

    B.

     Impurities float on the molten iron as slag

    C.

     The slag contains lime about 45%

    D.

     All the above

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    Answer : Option D

    Explanation :

    Explanation Not Provided


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