Chemistry · Environmental Chemistry
वे पदार्थ जो जलकर ऊष्मा प्रदान करते हैं क्या कहलाते हैं?
- 1कैलोरीफायर
- 2ऑक्सीकारक
- 3ईंधन✓
- 4कोयला
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ईंधन
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