3387Chemical EngineeringMedium
Pick out the wrong statement?
ACarbon refractories cannot be used in the furnaces operating under reducing conditions
BSilica occurs in nature in all cellular, amorphous or crystalline form
CMullite can be obtained by the heating of alusite, kyanite or sillimanite
DSand & coke is the main raw material for the manufacture of silicon carbide
Correct answer
A. Carbon refractories cannot be used in the furnaces operating under reducing conditions
Explanation
The correct answer is Carbon refractories cannot be used in the furnaces operating under reducing conditions.