JEE Advanced 2021 Full Test 5 Paper 2

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PART – II

Chemistry

SECTION – A (One or More than one correct type)
This section contains 06 multiple choice questions. Each question has FOUR options (A), (B), (C) and (D). ONE OR MORE THAN ONE of these four options is(are) correct.

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Question : 20 of 54

Marks: +1, -0

Carbon reduction cannot be employed for the extraction of Al from Al2O3, because

The temperature requirement is very high (∼2000°C)
The Ellingham diagram says Al2O3 is impossible to reduce by the carbon reduction process.
Al obtained in the vapour state is very difficult to handle.
Al forms its carbide (Al4C3) and a lot of it gets wasted.

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