How Is Pure Chromium Metal Prepared

question 43

Multiple Choice

How is pure chromium metal prepared?

• A)​By exothermic reaction of chromium (VI)oxide,obtained from aluminum ore,with steel
• B)​By endothermic reaction of chromium (III)oxide,obtained from chromite ore,with aluminum
• C)​By endothermic reaction of chromium (II)oxide,obtained from iron ore,with copper
• D)​By exothermic reaction of chromium (III)oxide,obtained from chromite ore,with aluminum
• E)​By endothermic reaction of chromium (VI)oxide,obtained from aluminum ore,with brass

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