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प्रश्न
In electrolytic reduction of alumina _______ is used as a cathode.
विकल्प
sulphur
graphite
platinum
aluminium
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उत्तर
In electrolytic reduction of alumina graphite is used as a cathode.
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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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