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in Chemistry by (79.8k points)

Assertion : [Fe(H2O)5NO]SO4 is paramagnetic. 

Reason : The Fe in [Fe(H2O)5NO]SO4 has three unpaired electrons.

(a) Both A and R are true and R is the correct explanation of A

(b) Both A and R are true but R is not correct explanation of A

(c) A is true but R is false

(d) A and R are false

1 Answer

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Best answer

The correct option is (a) Both A and R are true and R is the correct explanation of A.

Explanation:

Fe+ : [Ar] 3d6 4s1 

When the weak field ligand H2O and strong field ligand NO attack, the configuration changes as follows:

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