Question

[Fe(en)₂(H₂O)₂]²⁺ + en → complex (X). The correct
statement about the complex (X) is –
(a) it is a low spin complex
(b) it is diamagnetic
(c) it shows geometrical isomerism
(d) (a) and (b) both

Answer 1

The complex (X) is a low spin complex and it has diamagnetic nature.

Option (D) is correct.

Explanation:

[Fe(en)₂(H₂O)₂]²⁺ + en ---> [Fe(en)3 ]2+  + 2H2O

• The complex is  [Fe(en)3 ]2+ .

• It is inner orbital complex having d sub shell (d2) and sp3 hybridization.

• It has diamagnetic nature.

• It is M(AA)3 type complex which a-has only one form.

Thus the complex (X) is a low spin complex and it is diamagnetic.

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