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

CUET Preparation Today

Start Free Mocks

Home Questions YRZQW7PUHK

Target Exam

CUET

Subject

Chemistry

Chapter

Inorganic: Coordination Compounds

Question:

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

Options:

Assertion and reason both are correct statements and reason is correct explanation for assertion.

Assertion and reason both are correct statements but reason is not correct explanation for assertion.

Assertion is correct statement but reason is wrong statement.

Assertion is wrong statement but reason is correct statement.

Correct Answer:

Assertion and reason both are correct statements and reason is correct explanation for assertion.

Explanation:

[Fe(H₂O)₅NO]SO₄→ [Fe(H2O)₅NO]²⁺ + SO₄^2-

[Fe(H₂O)₅NO]²⁺

x + 5(0) + 1 = 2

x = 2 -1 = 1

₂₆Fe : [Ar]4s²3d⁶

Fe⁺ : [Ar]4s¹3d⁶

N O^{+}

causes pairing of

4 s

electron inside.

Thus, the configuration is

3 d^{7}

and the number of unpaired electrons is

3