Alumino thermite process is used for the extraction of metals, whose oxides are:

strongly acidic

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not easily reduced by carbon

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not easily reduced by hydrogen

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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 $C r, M n, T i, M o, F e$ etc. are difficult to reduce by carbon reduction. These can be reduced by thermite reduction.

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Metals as reducing agents

(a)Krolls process for titanium
$T i {C l}_{4} + 2 M g ⟶ 2 M g {C l}_{2} + T i$

(b)Gold Schmidt alumino thermite process?

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