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B
Salt
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C
Ferro-manganese alloy
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D
Bleaching powder
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E
None of these
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Solution
The correct option is C Ferro-manganese alloy Most of the manganese produced is used in the form of ferromanganese and silicomanganese alloys for iron and steel manufacture. Manganese ores containing iron oxides are first reduced in blast furnaces or electric furnaces with carbon to yield ferromanganese, which in turn is used in steelmaking.