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Metallurgy — Chemistry STD 12 — Question

Tamilnadu BoardEnglish MediumSTD 12ChemistryMetallurgy1 Mark
Question
Explain the following term with a suitable example.Gangue
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Answer

The non-metallic impurities, rocky materials and siliceous matter present in the ores are called gangue.Example: $SiO _2$ is the gangue present in the iron ore $Fe _2 O _3$.

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