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Properties & Uses of Aluminium

Which of the ...

Question

Which of the following metals cannot be obtained by reduction of its metal oxide by aluminium?

A

C r

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B

M n

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C

F e

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D

M g

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Solution

The correct option is C $M g$
Magnesium metal is more reactive than Aluminium.
So, it is not required by Aluminium through Thermite reaction
$K > N a > C a > M g > A l$ (Reactivity order)

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