Refractory materials are generally used in furnaces because [MNR 1980;

1.	Refractory materials are generally used in furnaces because [MNR 1980; MP PMT 1986]
A.	They possess great structural strength
B.	They can withstand high temperature
C.	They are chemically inert
D.	They do not require replacement
Answer» C. They are chemically inert

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Refractory materials are generally used in furnaces because [MNR 1980; MP PMT 1986]

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