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Question: Answered & Verified by Expert

The oxidation number of the underlined atom in the following species

(Identify the incorrect statement)

ChemistryRedox ReactionsNEETNEET 2020 (Phase 2)
Options:
  • A Cu2O¯ is -1
  • B Cl¯O3- is +5
  • C KrCr2¯O7 is +6
  • D HAu¯Cl4 is +3
Solution:
2549 Upvotes Verified Answer
The correct answer is: Cu2O¯ is -1
Ox. state of "O" in Cu2O=-2
Ox. state of "Cl" in ClO3-=+5
Ox. state of "Cr" in K2Cr2O7=+6
Ox. state of "Au" in HAuCl4=+3
∴ (1) is incorrect

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