Complete the following

2Al2O3+3C→4X+3Y. X & Y are andrespectively.

A l

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C O_{2}

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C O

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A l C

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Solution

The correct options are
A $A l$
B $C O_{2}$
Alumina on reaction with carbon or coke gives aluminium and carbon dioxide.
$2 A l_{2} O_{3} + 3 C \to 4 A l + 3 C O_{2}$

This reaction requires a very high temperature (2000 $^{0} C$ ), hence, is not economically viable to extract aluminium at a large scale.

Also, low yields of aluminum are obtained owing to the side reaction - aluminium reacts with carbon to form aluminium carbide.
$4 A l + 3 C \to A l_{4} C_{3}$

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