

MCQOPTIONS
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1. |
*$_Which of the following is the second major component of cement?? |
A. | Al‚ÇÇO‚ÇÉ |
B. | SiO‚ÇÇ |
C. | CaO |
D. | Fe‚ÇÇO‚ÇÉ |
Answer» C. CaO | |