નીચેના પૈકી ચુંબકીય ચાકમાત્રા (spin only values in $B.M.$) નો સાચો ક્રમ ..............

(Atomic nos. $Mn = 25,\,Fe = 26,\,Co = 27$)

Question

નીચેના પૈકી ચુંબકીય ચાકમાત્રા (spin only values in $B.M.$) નો સાચો ક્રમ ..............

(Atomic nos. $Mn = 25,\,Fe = 26,\,Co = 27$)

A${[Fe{(CN)_6}]^{4 - }} > {[MnC{l_4}]^{2 - }} > {[CoC{l_4}]^{2 - }}$
B${[MnC{l_4}]^{2 - }} > {[Fe{(CN)_6}]^{4 - }} > {[CoC{l_4}]^{2 - }}$
C${[MnC{l_4}]^{2 - }} > {[CoC{l_4}]^{2 - }} > {[Fe{(CN)_6}]^{4 - }}$
D${[Fe{(CN)_6}]^{4 - }} > {[CoC{l_4}]^{2 - }} > {[MnC{l_4}]^{2 - }}$

AIEEE 2004, Diffcult

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Solution

c
(c)Magnetic moment $ = \sqrt {n + 2} $ Where, $ n = $ number of unpaired electron i.e., greater the number of unpaired electron greater will be the paramagnetic character.

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