Chemical Engineering - Chemical Engineering Basics - Discussion

Discussion Forum : Chemical Engineering Basics - Section 24 (Q.No. 23)
23.
Alumina, silica, lime and iron oxide are the basic raw material for the manufacture of portland cement. The component of Portland cement which first hardens is
5CaO . 3 Al2O3
3CaO . Al2O3
3CaO . SiO2
2CaO . SiO2
Answer: Option
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