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Q. |
Pick up the correct proportions of chemical ingredients of cement |
A. | lime : silica : alumina : iron oxide : 63 : 22 : 6 : 3 |
B. | silica : lime : alumina : iron oxide : 63 : 22 : 6 : 3 |
C. | alumina : silica : lime : iron oxide : 63 : 22 : 6 : 3 |
D. | iron oxide : alumina : silica : lime : 63 : 22 : 6 : 3 |
Answer» A. lime : silica : alumina : iron oxide : 63 : 22 : 6 : 3 |
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