A. to dry the moisture of slurry
B. to decompose lime stone to unslaked lime
C. combination of different oxides like CaO SiO2 Fe2O3 and Al2O3
D. to reduce the impurities
Correct Answer: combination of different oxides like CaO SiO2 Fe2O3 and Al2O3 ✔
Last Updated: February 11, 2021