Coordination Compounds 2 Question 51

Assertion and Reason

Read the following questions and answer as per the direction given below:

(a) Statement I is true; Statement II is true; Statement II is the correct explanation of Statement I.

(b) Statement I is true; Statement II is true; Statement II is not the correct explanation of Statement I.

(c) Statement I is true; Statement II is false.

(d) Statement I is false; Statement II is true.

53.

Statement I $\left[Fe\left(H _2 O\right) _5 NO\right] SO _4$ is paramagnetic.

Statement II The $Fe$ in $\left[Fe\left(H _2 O\right) _5 NO _3 SO _4\right.$ has three unpaired electrons.

$(2008,3 M)$

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Answer:

Correct Answer: 53. (a)

Solution:

  1. In the complex $\left[Fe\left(H _2 O\right) _5 NO\right] SO _4,$ $ Fe$ is in $+1$ oxidation state because $NO$ is in $+1$ state. Also $NO$ is a strong ligand, complex has $3 d^{7}$ -configuration at $Fe(I)$ as :


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