When the iron ore contains $P_{2} O_{5}$ as impurities, the blast furnace should be lined with:

basic oxides

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acidic oxides

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neutral oxides

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none of the above

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Solution

The correct option is B basic oxides
To remove phosphorous oxide impurities from iron, the blast furnace is lined with a basic oxide which is any metal oxide, to react with the acidic $P_{2} O_{5}$ and remove it from the ore.

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When the iron ore contains P2O5 as impurities, the blast furnace should be lined with:

The correct option is B basic oxidesTo remove phosphorous oxide impurities from iron, the blast furnace is lined with a basic oxide which is any metal oxide, to react with the acidic P2O5 and remove it from the ore.

When the iron ore contains $P_{2} O_{5}$ as impurities, the blast furnace should be lined with:

The correct option is B basic oxides
To remove phosphorous oxide impurities from iron, the blast furnace is lined with a basic oxide which is any metal oxide, to react with the acidic $P_{2} O_{5}$ and remove it from the ore.