Which of the following has maximum unpaired d-electrons?
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a
Zn+
b
Fe2+
c
Ni3+
d
Cu+
answer is B.
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Detailed Solution
Fe(Z = 26)...[Ar]4s23d6Fe+2...[Ar]3d6Number of unpaired electrons = 4Number of unpaired electrons in Zn+(4s13d10, n = 1); Ni+3(3d7, n = 3) and Cu+(3d10, n = 0)