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Calcination

Carbon cannot...

Question

Carbon cannot be used to produce magnesium by chemical reduction of MgO because:

A

Carbon is not a powerful reducing agent

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B

Magnesium reacts with carbon to form carbides

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C

Carbon does not react with magnesium

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D

Carbon is a non-metal

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Solution

The correct option is A Magnesium reacts with carbon to form carbides
Carbon cannot be used to produce magnesium by chemical reduction of MgO because magnesium reacts with carbon to form carbides.

$2 M g + 3 C 2000^{\circ} C - --- \to M g_{2} C_{3}$

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