Alumino thermite process is used for the extraction of metals, whose oxides are:
A
strongly acidic
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B
not easily reduced by carbon
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C
not easily reduced by hydrogen
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D
strongly basic
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Solution
The correct option is B not easily reduced by carbon Metal oxides having very high melting points, e.g. oxides of Cr,Mn,Ti,Mo,Fe etc. are difficult to reduce by carbon reduction. These can be reduced by thermite reduction.