The composition of cement is: – McqOptions

MCQOPTIONS

1.	The composition of cement is:
A.	CaO - SiO2 - Al2O3
B.	CaO - Al2O3 - MgO
C.	SiO2 - Al2O3 - AlCl5
D.	CaO - SiO2 - AlCl3
Answer» B. CaO - Al2O3 - MgO

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