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Statement I [Fe(H(2)O)(5)NO]SO(4) is par...

Statement I `[Fe(H_(2)O)_(5)NO]SO_(4)` is paramagnetic
Statement II The Fe in `[Fe(H_(2)O)_(5)NO]SO_(4)` has three unpaired electrons .

Text Solution

Verified by Experts

The correct Answer is:
a
`[Fe(H_(2)O)_(5)NO]SO_(4)`
`NO` has charge equal to `+1` in this complex Therefore, the oxidation number of Fe in the complex becomes `+1`
`Fe = 3d^(6) 4s^(2),Fe^(o+) =3d^(6) 4s^(1)`
Since `H_(2)O` is a weak filed ligand and `No^(o+)` is a strong field ligand so olny `NO^(o+)` cause pairing of `4s` electron Thus only one pairing occurs
Thus the configuration is `3d^(7)` and the complex of unpaired electrons is 3
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The question consist of two statements each, printed as Assertion and Reason. While answering these questions you are required to choose any one of the following four responses: Assertion: [Fe(H_2O)_5NO]SO_4 is paramagnetic. Reason: The Fe in [Fe(H_2O)_5NO]SO_4 has three unpaired electrons.

(a). Assertion (A) is true, Reason (R) is also true, Reason (R) is the correct explanation for assertion (A). (b). Assertion (A) is true, Reason (R) is true, Reason (R) is not the correct explanation for Assertion (A). (c). Assertion (A) is true, Reason (R) is false. (d). Assertion (A) is false, Reason (R) is true. Q. Assertion (A): [Fe(H_2O)_5NO]SO_4 paramagnetic. Reason (R): The Fe in [Fe(H_2O)_5NO]SO_4 has three unpaired electrons.

The oxidation state of Fe in brown complex [Fe(H_(2)O)_(5)NO]SO_(4) is

Knowledge Check

  • Statement-1: [Fe(H_(2)O)_(5)NO]SO_(4) is paramagnetic. Statement-2: The Fe in [Fe(H_(2)O)_(5)NO]SO_(4) has three unpaired electrons.

    A
    Statement-1 is True, Statement-2 is True , Statement-2 is a correct explanation for Statement-1.
    B
    Statement-1 is True, Statement-2 is True, Statement-2 is NOT a correct explanation for Statement-1.
    C
    Statement-1 is True, Statement-2 is False.
    D
    Statement-1 is False, Statement-2 is True.

  • Statement-1. [Fe(H_(2)O)_(5)NO]SO_(4) is paramagnetic. Statement-2. The Fe in [Fe(H_(2)O)_(5)NO]SO_(4) has three unpaired electrons.

    A
    Statement-1 is True, Statement-2 is True , Statement-2 is a correct explanation for Statement-6
    B
    Statement-1 is True, Statement is 2 is True , Statement-2 is NOT a correct explanation for Statement-6
    C
    Statement-1 is True, Statement-2 is False
    D
    Statement-1 is False, Statement-2 is True

  • The question consist of two statements each, printed as Assertion and Reason. While answering these questions you are required to choose any one of the following four responses: Assertion: [Fe(H_2O)_5NO]SO_4 is paramagnetic. Reason: The Fe in [Fe(H_2O)_5NO]SO_4 has three unpaired electrons.

    A
    (a) If both assertion and reason are true and the reason is the correct explanation of the assertion.
    B
    (b) If both assertion and reason are true but reason is not the correct explanation of the assertion.
    C
    (c) If assertion is true but reason is false.
    D
    (d) If assertion is false but reason is true.