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Chemistry
: General Principles and Processes of Isolation of Elements
भोजन को भूनने पर ऑक्साइड बनते हैं। लेकिन ऑक्साइड अयस्कों को भूनना क्यों आवश्यक है? , Oxides are formed when food is roasted. But why is it necessary to roast oxide ores?
Oxides are formed when food is roasted. But why is it necessary to roast oxide ores?
A.
To avoid gangue particles
गैंग के कणों से बचने के लिए
B.
To get crude metal by using an oxidising agent
ऑक्सीकारक का प्रयोग करके अपरिष्कृत धातु प्राप्त करना
C.
To remove volatile impurities in the form of their oxides
उनके आक्साइड के रूप में अस्थिर अशुद्धियों को दूर करने के लिए
D.
To make the ore porous
अयस्क को झरझरा बनाने के लिए
Solution
C. To remove volatile impurities in the form of their oxides
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