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प्रश्न
An important ore of zinc metal is ______.
विकल्प
calamine
cuprite
pyrolusite
haematite
MCQ
रिक्त स्थान भरें
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उत्तर
An important ore of zinc metal is calamine.
Explanation:
Calamine is an important carbonate ore used to extract zinc, consisting primarily of zinc carbonate (ZnCO3). The other options are incorrect because cuprite is an ore of copper, pyrolusite is an ore of manganese, and haematite is an ore of iron.
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