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Which reaction is a reversible reaction ? A) S + O2 → SO2 B) PCl5 ⇌ PCl3+ Cl2 C) 2 Na + Cl2 → 2 NaCl D) CaCO3 → CaO + CO2 |
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Answer» B) PCl5 ⇌ PCl3+ Cl2 |
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