Chemistry · Chemical Reactions
जब लोहे में जंग लगती है, तो उसका भार:
- 1पहले घटता है फिर बढ़ता है
- 2वही रहता है
- 3घटता है
- 4बढ़ता है✓
सही उत्तर देखें
बढ़ता है
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