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प्रश्न
Which of the following is an ore of copper?
विकल्प
Pyrargyrite
Sylvine
Siderite
Azurite
MCQ
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उत्तर
Azurite
Explanation:
Azurite is a blue-coloured ore of copper. Its chemical formula is Cu3(CO3)2(OH)2. It contains copper carbonate and hydroxide, and is commonly used as a copper ore.
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