NEET 2020 Model Question Paper 3

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Question : 162 of 180

Marks: +1, -0

Which of the following complexes formed by Cu+2 ion is most stable

Cu+2+4NH3 ⇌[Cu(NH3)4]2+; log K = 11.6
Cu+2+4CN− ⇌[Cu(CN)4]2−; logK = 27.3
Cu+2+2en ⇌[Cu(en)2]2+; log K = 15.4
Cu+2+4H2O ⇌[Cu(H2O)4]2+ ;logK = 8.9

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