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Question: Answered & Verified by Expert

Cobalt in which oxidation state shows Blue colour?
Chemistryd and f Block ElementsNEET
Options:
  • A +3
  • B +2
  • C 0
  • D -1
Solution:
1862 Upvotes Verified Answer
The correct answer is: +3
Correct Option is : 1
+3

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