Chemistry · Chemical Compounds
जंग (Rust) का रासायनिक संघटन निम्नलिखित में से क्या है?
- 1Fe₃O₄
- 2Fe₂O₃
- 3FeO
- 4Fe₂O₃·xH₂O✓
सही उत्तर देखें
Fe₂O₃·xH₂O
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