1.

The sequence of refractory materials according to increasing melting points is :

A. Dolomite, Magnesia, Bauxite, Chromite
B. Bauxite, Chromite, Dolomite, Magnesia
C. Magnesia, Bauxite, Dolomite, Chromite.
Answer» C. Magnesia, Bauxite, Dolomite, Chromite.


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