JEE Advanced Chemistry question

Primary and secondary valency of Pt in [Pt(en)_2Cl_2]Cl_2 are

(A)4,4
(B)4,6Correct
(C)6,6
(D)4,2

Answer: (B)

Solution

Primary valency corresponds to the oxidation state of platinum. The two chlorides coordinated to platinum plus the two free chlorides outside the sphere account for the oxidation state of : primary

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Question ID VK-160087