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Discussion :: Building Materials

  1. Which of the following pairs gives a correct combination of the useful and harmful constituents respectively of a good brick earth?

  2. A.

     Lime stone and alumina

    B.

     Silica and alkalies

    C.

     Alumina and iron

    D.

     Alkalies and magnesium

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    Workspace

    Answer : Option B

    Explanation :

    Explanation Not Provided


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