Match the following
List - I (Complex) List - II (Spin only Magnetic moment)
A) ${[{CoF}_{6}]}^{3 -}$ I) 0
B) ${[Co {(C_{2} O_{4})}_{3}]}^{3 -}$ II) $\sqrt{24}$
C) ${[{FeF}_{6}]}^{3 -}$ III) $\sqrt{8}$
D) ${[Mn (CN)_{6}]}^{3 -}$ IV) $\sqrt{35}$
V) $\sqrt{15}$
1 2 3 4
A V II IV I
B II I IV III
C II IV V III
D III III I V

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answer is B.

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Detailed Solution

Number of unpaired electrons in ${[{CoF}_{6}]}^{3 -}$ is 4 and its magnetic moment value is $\sqrt{24}$ . A belongs to II.
Number of unpaired electrons in ${[Co {(C_{2} O_{4})}_{3}]}^{3 -}$ is 0 and its magnetic moment value is 0. B belongs to I.
Number of unpaired electrons in ${[{FeF}_{6}]}^{3 -}$ is 5 and its magnetic moment value is $\sqrt{35}$ . C belongs to IV.
Number of unpaired electrons in ${[Mn (CN)_{6}]}^{3 -}$ is 5 and its magnetic moment value is $\sqrt{8}$ . D belongs to III.

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List - I (Complex)		List - II (Spin only Magnetic moment)
A)	${[{CoF}_{6}]}^{3 -}$	I)	0
B)	${[Co {(C_{2} O_{4})}_{3}]}^{3 -}$	II)	$\sqrt{24}$
C)	${[{FeF}_{6}]}^{3 -}$	III)	$\sqrt{8}$
D)	${[Mn (CN)_{6}]}^{3 -}$	IV)	$\sqrt{35}$
		V)	$\sqrt{15}$