

MCQOPTIONS
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1. |
Fusion point of an acidic refractory material is |
A. | increased by the addition of basic oxides. |
B. | reduced by the addition of basic oxides. |
C. | not affected by the addition of basic oxides. |
D. | always more than 2500 C. |
Answer» C. not affected by the addition of basic oxides. | |