Question:
Which of the following is a Basic refractory?
Which of the following is a Basic refractory?
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Magnesite refractories are basic refractories because they mainly contain \(MgO\).
Updated On: May 7, 2026
- Silica
- Fireclay
- Magnesite
- Alumina
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The Correct Option is C
Solution and Explanation
Concept:
Refractories are classified chemically as acidic, basic, or neutral. Basic refractories contain basic oxides such as \(MgO\) and \(CaO\).
Step 1: Silica refractory is acidic in nature because it contains: \[ SiO_2 \]
Step 2: Fireclay refractories are mainly alumino-silicate refractories and are generally acidic to neutral.
Step 3: Magnesite refractory mainly contains: \[ MgO \]
Step 4: Since \(MgO\) is a basic oxide, magnesite is a basic refractory. Therefore, the correct answer is: \[ \boxed{\text{Magnesite}} \]
Step 1: Silica refractory is acidic in nature because it contains: \[ SiO_2 \]
Step 2: Fireclay refractories are mainly alumino-silicate refractories and are generally acidic to neutral.
Step 3: Magnesite refractory mainly contains: \[ MgO \]
Step 4: Since \(MgO\) is a basic oxide, magnesite is a basic refractory. Therefore, the correct answer is: \[ \boxed{\text{Magnesite}} \]
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