What is the value of effective atomic number of cobalt in [Co (NH_3)_6]^ 3+ complex if Co (Z = 27) ?

MHT CET 2023 Chemistry question

What is the value of effective atomic number of cobalt in [Co (NH)] complex if Co (Z = 27) ?

(A)30
(B)32
(C)35
(D)36Correct

Answer: (D)

Solution

Effective atomic number (EAN) = atomic number of metal - oxidation state + 2 x (number of ligands donating electron pairs). In cobalt is in the +3 state, and the six

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Question ID VK-095335