Which of the following is not a neutral refractory ?
Correct answer: B. Magnesite
- A. Silicon carbide
- B. Magnesite
- C. Chromite
- D. Graphite
Explanation
Magnesite is a basic refractory because its principal component is magnesium oxide, MgO. Silicon carbide, chromite and graphite are commonly grouped as neutral refractories because they resist both acidic and basic slags relatively well.
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