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Assertion : Carbon is used for reducing ...

Assertion : Carbon is used for reducing aluminium from aluminium oxide.
Reason : In a Aluminium has greater affinity for oxygen than for carbon.

A

Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).

B

Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).

C

Assertion (A) is true but reason (R) is false.

D

Assertion (A) is false but reason (R) is true.

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Give reason: Carbon is not used for making aluminium from aluminium oxide

Aluminium acts as an oxidising agent. Aluminium gas a strong afinity for oxygen.

Knowledge Check

  • Aluminium oxide is a/an -

    A
    Basic oxide
    B
    Neutral oxide
    C
    Amphoteric
    D
    Acid oxide

  • A: Aluminium metal is used as a reducing agent for the extraction of metals R: Aluminium has great affinity for oxygen

    A
    If both Assertion & Reason are true and the reason is the correct explanation of the assertion, then mark (1).
    B
    If both Assertion & Reason are true but the reason is not the correct explanation of the assertion, then mark (2)
    C
    If Assertion is true statement but Reason is false, then mark
    D
    If both Assertion and Reason are false statements, then mark (4)

  • Assertion : Aluminium is used for the extraction of chromium from its oxide Reason : Aluminium has high melting point.

    A
    Both assertion and reason are correct statements, and reason is the correct explanation of the assertion.
    B
    Both assertion and reason are correct statements, but reason is not the correct explanation of the assertion.
    C
    Assertion is correct, but reason is wrong statement.
    D
    Assertion is wrong, but reason is correct statement.

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    Assertion : Al_2O_3 is converted to aluminium by reduction with carbon. Reason : Carbon (graphite) has greater affinity for oxygen than Al.

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    Assertion : Al_(2)O_(3) is converted into Al by reduction with carbon at high temp. Reason : Carbon has greater affinity for oxygen than aluminium.

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