A) Gypsum
B) Limestone
C) Clay
D) Ash
Correct Answer: B
Solution :
The composition of cement is \[CaO\] (lime) or limestone 62%, silica \[(Si{{O}_{2}})\] 22%, alumina \[(A{{l}_{2}}{{O}_{3}})\] 7.5%, magnesia \[(MgO)\] 2.5%, etc. Thus, limestone is the major raw material for cement.You need to login to perform this action.
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