Chemistry · Electronic concepts of oxidation and reduction, redox reactions, oxidation number, rules for assigning oxidation number and balancing of redox reactions

Identity the compound in which phosphorus exists in the oxidation state of +1

Identity the compound in which phosphorus exists in the oxidation state of +1

  • A. Phosphonic acid \( \left(H_{3} P O_{3}\right) \)
  • B. Phosphinic acid \( \left(H_{3} P O_{2}\right) \)
  • C. Pyrophosphorus acid \( \left(H_{4} P_{2} O_{5}\right) \)
  • D. Orthophosphoric acid \( \left(H_{3} P O_{4}\right) \)

Step-by-step solution

The oxidation state of phosphorus in phosphinic acid (H3PO2) is calculated as: 3(+1) + x + 2(-2) = 0 → x = +1. Therefore, phosphorus exhibits a +1 oxidation state in this compound.
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