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Discussion :: Refractory Technology

  1. Porosity is induced in insulating refractories by adding

    2. A.
    powdered naphthalene.
    B.
    ammonium chloride/sulphate.
    C.
    calcium phosphate.
    D.
    all (a), (b) and (c).

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    Answer : Option D

    Explanation :

    No answer description available for this question.

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