Chemistry
NULL
Medium
Question
Cement is a mixture of so many compounds roasted in rotary kiln. Which substances has greater percentage ?
A
Lime (CaO)
✓ Official correct answer
B
Silica (SiO2)
C
Alumina (Al2O3)
D
Magnesia (MgO)
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A
Lime (CaO)
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B
Silica (SiO2)
No member explanations yet for this option.
C
Alumina (Al2O3)
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D
Magnesia (MgO)
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Explanation
Among the compounds roasted in the rotary kiln during cement production, lime (CaO) makes up the greatest percentage by mass.
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