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

CHEMISTRY · Single correct · A Level · Chemistry · Transition metals and their chemistry · Transition metals and their chemistry

Problem

Which one of the following has lowest value of magnetic behaviour? (1)

[\text{Cr}(\text{CN})_6]^{3-}

(2)

[\text{Mn}(\text{CN})_6]^{3-}

(3)

[\text{Fe}(\text{CN})_6]^{3-}

(4)

[\text{Co}(\text{CN})_6]^{3-}