Question
अयस्कों के समूह कौन-कौन से हैं?
Answer
(i) अक्रिय अयस्क (ii) ऑक्सीकृत अयस्क (iii) सल्फरयुक्त अयस्क (iv) हैलाइड अयस्कSubscribe to our youtube channel!
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