Order of paramagnetic character among following elements is/are:

M n > F e > C r

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F e > Z n > C r

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C r > F e > Z n

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C r > M n > F e

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Solution

The correct options are
B $C r > F e > Z n$
D $C r > M n > F e$
$C r - [A r] 4 s^{1} 3 d^{5}$
$F e - [A r] 4 s^{2} 3 d^{6}$
$Z n - [A r] 4 s^{2} 3 d^{10}$
$M n - [A r] 4 s^{2} 3 d^{5}$

The number of unpaired electrons present in Cr, Fe, Zn and Mn are 6, 4, 0 and 5 respectively.
Greater is the number of unpaired electrons, greater is the paramagnetic character.
Order of paramagnetic character among following elements are $C r > F e > Z n$ and $C r > M n > F e$

Hence, the correct options are $C$ and $D$ .

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