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The important function of burning zone in the rotary kilm is __________________?
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 Al2O3Correct Answer
D. to reduce the impurities
Correct Option: C. combination of different oxides like CaO SiO2 Fe2O3 and Al2O3
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