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AP EAMCET · Chemistry · Coordination Compounds

Which of the following complex ions is most stable?

  1. A CoH2O63+
  2. B Co(CN)63-
  3. C CoC2O433-
  4. D CoF63-
Verified Solution

Answer & Solution

Correct Answer

(B) Co(CN)63-

Step-by-step Solution

Detailed explanation

The stability of a complex ion can be decided with effective atomic number rule. EAN = Atomic number of metal-O.N. of metal+2×C.N. Oxidation number of cobalt in given complex: X-6 =-3 X= +3 So,EAN =27-3+2×6=36. EAN…