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About how much manganese goes into one tonne of steel?
A50 kg
B10 kg
C100 kg
D1 kg
Answer & Solution
Correct answer: B. 10 kg
1. Manganese is used for steel and ferro-manganese alloy.
2. A small amount hardens each tonne.
3. About 10 kg per tonne.
_Source: NCERT Class 10 Geography, Contemporary India II, Chapter 5, Minerals and Energy Resources._
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