Science · Chemistry
क्यूप्रस ऑक्साइड का उपयोग क्या है?
- 1पेट्रोलियम के शुद्धिकरण में
- 2नीले और हरे कांच के निर्माण में
- 3A और B दोनों✓
- 4उर्वरक
सही उत्तर देखें
A और B दोनों
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