Among.the metals Cr, Fe, Mn, Ti, Ba, and Mg, the one that cannot be obtained by reduction of its metal oxide by aluminium is :

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Reduction by Al

This process is employed in the case of those metals which have very high melting points and are to be extracted from their oxides

For example:

C r_{2} O_{3} + 2 A l \to A l_{2} O_{3} + 2 C r + h e a t

3 M n_{3} O_{4} + 8 A l \to 4 A l_{2} O_{3} + 9 M n + h e a t

However,

B a

cannot be obtained by this process.

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Question Text	Among.the metals Cr, Fe, Mn, Ti, Ba, and Mg, the one that cannot be obtained by reduction of its metal oxide by aluminium is :
Answer Type	Text solution:1
Upvotes	150