Cu2S(s) + O2(g) = 2CU(s) + SO22(g)

  • A +1 to 0
  • B 0 to +2
  • C +2 to +1
  • D 0 to +1
jamb 2015chemistry

The correct answer is A. +1 to 0

The oxidation number is from h to O as a result of release of sulphur. Option B, C, D are not the actual oxidation number for copper

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