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Valency and Oxidation States

In the blast ...

Question

In the blast furnace/the flux is:

A

acidic

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B

basic

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C

amphoteric

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D

not matter

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Solution

The correct option is B basic
The gaunge is $S i O_{2}$ . It is acidic. To form a neutral complex, basic flux is used in blast furnace.
$M g C O_{3} Basic Flux + S i O_{2} Acidic gangue \to M g S i O_{3} Slag + C O_{2}$
Option B is correct.

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