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प्रश्न
Define the following term.
Gangue
उत्तर
The impurities (sand, silt, soil, gravel, etc.) present in the ore are called gangue.
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संबंधित प्रश्न
Metallic oxides of zinc, magnesium and copper were heated with the following metals.
| Metal | Zinc | Magnesium | Copper |
| Zinc oxide | – | – | – |
| Magnesium oxide | – | – | – |
| Copper oxide | – | – | – |
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Fill in the following blank with suitable word:
Bronze is an alloy of copper and .........
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(a) copper
(b) mercury
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(b) hydride
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what is thermit?
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\[\ce{MnO2(s) + Al(s) -> Mn(l) + Al2O3(s) + Heat}\]
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