Question
Question: The EAN of platinum in potassium hexachloridoplatinate (IV) is (Atomic number of Pt = 78) :...
The EAN of platinum in potassium hexachloridoplatinate (IV) is (Atomic number of Pt = 78) :
A
90
B
86
C
76
D
88
Answer
86
Explanation
Solution
K2 [PtCl6] ; Platinum is in + 4 oxidation state. Atomic number of Pt = 78..
So EAN Pt(IV) = 78 – 4 + 12 = 86