SATHEE: Co-Ordination Compounds Question 239

Co-Ordination Compounds Question 239

Question: Which of the following complex compound (s) is/are paramagnetic and low spin?

(I) $K_{3} [F e (C N_{6})]$
(II) ${[N i {(C O)}_{4}]}^{10}$ (III) ${[C r {(N H_{3})}_{6}]}^{3 +}$
(IV) ${[M n, (C N_{6})]}^{4, -}$ Choose the correct code:

Options:

A) I only

B) II and III

C) I and IV

D) IV only

Show Answer

Answer:

Correct Answer: C

Solution:

$F e^{3 +}, i n, {[F e (C N_{6})]}^{3 -}$
$\Rightarrow$ low spin complex $μ = 1.732 B M$ Ni in $[N i {(C O)}_{4}]$

$C r^{3 +}, i n {[C r {(N H_{3})}_{6}]}^{3 +}$
$\Rightarrow$ low and high spin complex is applicable for $d^{4}$ to $d^{7}$ configuration $M n^{2 +} i n {[M n {(C N)}_{6}]}^{4 -}$
$\Rightarrow$ low spin complex $μ = 1.732, B M$

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Co-Ordination Compounds Question 239

Question: Which of the following complex compound (s) is/are paramagnetic and low spin?

Options:

Answer:

Solution:

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