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Q.

FeSO4 reacts with excess KCN solution to form a complex then no.of unpaired d-e– in central atom of that complex is

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a

2

b

1

c

0

d

4

answer is C.

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Detailed Solution

FeSO4+6KCN⟶K4Fe(CN)6+K2SO4CN− is SFL. So, no unpaired electrons present.

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