Which of the following is the second major component of cement? (A) Al2O3(B) SiO2(C) CaO(D) Fe2O3

Which of the following is the second major component of cement?
(A) Al2O3
(B) SiO2
(C) CaO
(D) Fe2O3
by

1 Answer

Answer :

(B) SiO2
by

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