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Electrolytic Refining

There were tw...

Question

There were two metals, Metal A and B. Both were extracted by means of electrolytic reduction of their molten salts. Metal A and B are:

A

Manganese and magnesium

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B

Magnesium and aluminium

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C

Aluminium and manganese

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D

None of these

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Solution

The correct option is B
Magnesium and aluminium

The oxides of highly electropositive metals like Na, K, Mg, Al cannot be reduced by using coke. Hence for them electrolytic reduction is required.

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Q. Assertion :Magnesium is extracted by electrolytic reduction.
Reason: All metals are extracted by electrolytic reduction.

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{N a}_{2} {C O}_{3}

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Which of the following options regarding the above statements is correct?

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