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Standard X

Chemistry

Smelting

The principle...

Question

The principle of slag formation is essentially the following:
Non-metal oxide + Metal oxide $\to$ $X$
Find out $X$ .

non-fusible (easily melted) slag

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fusible (easily melted) slag

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solid phase miscible with molten metal

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solid phase immiscible with molten metal

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Solution

The correct option is B fusible (easily melted) slag
Smelting - The process of extraction of metal in its molten state by any reducing agent in presence of flux is called smelting.
For example : oxides of less electro - positive metals like Pb, Zn, Fe, Cu are reduced by any other reducing agents.
Here X is -
$F e O + S i O_{2} \to F e S i O_{3}$ fusible slag.

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When a non-metal reacts with oxygen, it forms a non-metallic oxide. This non-metallic oxide when reacted with $H_{2} O$ , form a substance, ‘X’ with pH value less than 7. Select the correct option regarding the substance, ‘X’.

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The principle of slag formation is essentially the following:Non-metal oxide + Metal oxide → X Find out X.

The principle of slag formation is essentially the following:
Non-metal oxide + Metal oxide $\to$ $X$
Find out $X$ .