A) an alloy of lanthanide and nickel
B) an alloy of lanthanide and copper
C) an alloy of lanthanide, iron and carbon
D) an alloy of lanthanide, magnesium and nickel
Correct Answer: C
Solution :
Mischmetal is an alloy of lanthanide metal (95%) and iron (about 5%) with traces of sulphur, carbon, calcium and aluminium. It is used in the production of bullets, shells and lighter flint.
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