Q. The sequence of refractory materials according to increasing melting points is: (Solved)
1. Dolomite, Magnesia, Bauxite, Chromites
2. Bauxite, Chromites, Dolomite, Magnesia
3. Magnesia, Bauxite, Dolomite, Chromites
4. None of these
- b. Bauxite, Chromites, Dolomite, Magnesia