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1. |
Consider the following oxides : 1. AlO2. CaO3. SiOThe correct sequence in increasing order of their percentage in an ordinary portland cement is |
A. | 2, 1, 3 |
B. | 1, 3, 2 |
C. | 3, 1, 2 |
D. | 1, 2, 3 |
Answer» C. 3, 1, 2 | |