Q.

Which one of the following has lowest value of magnetic behaviour?

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a

Cr(CN)63−

b

Mn(CN)63−

c

Fe(CN)63−

d

Co(CN)63−

answer is D.

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Detailed Solution

Cr(CN)63−→3 unpaired electrons. Mn(CN)63−→2 unpaired electrons. Fe(CN)63−→1 unpaired electron. Co(CN)63−→0 unpaired electron.
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Which one of the following has lowest value of magnetic behaviour?