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What is the change in the oxidation number of phosphorus in the the reaction ...

What is the change in the oxidation number of phosphorus in the the reaction represented by the following equation? 4P (s) + 5O(2)(g) → 2P2O5(g)
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  • A 0 to + 2
  • B 0 to 5
  • C +4 to + 2
  • D +4 to +5
  • E +4 to +7
Correct Answer: Option B
Explanation:

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