AP EAMCET · Chemistry · p Block Elements (Group 13 & 14)
For a good quality cement the ratio of silica to alumina should be in the range of
- A \(2.5-4.0\)
- B \(0.1-1.0\)
- C \(1.0-1.5\)
- D \(5.0-8.0\)
Answer & Solution
Correct Answer
(A) \(2.5-4.0\)
Step-by-step Solution
Detailed explanation
For a good quality cement :- Silica \(\left(\mathrm{SiO}_2\right)\) : Alumina \(\left(\mathrm{Al}_2 \mathrm{O}_3\right)=2.5-4.0\) Lime \((\mathrm{CaO}): \mathrm{SiO}_2+\mathrm{Al}_2 \mathrm{O}_3+\mathrm{Fe}_2 \mathrm{O}_3=2\)
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