0
You visited us 0 times! Enjoying our articles? Unlock Full Access!
Question

Which of the following complex is paramagnetic?
  1. [Mn(CN)6]3
  2. [Ni(CO)4]
  3. [Co(CN)6]3
  4. [Fe(CN)6]4

A
[Co(CN)6]3
B
[Ni(CO)4]
C
[Fe(CN)6]4
D
[Mn(CN)6]3
Solution
Verified by Toppr

As CO & CN are strong ligand so pairing of electron happens.
Mn+3: d4:t2,1,12g paramagnetic
Ni0: d8s2:e4,t62g diamagnetic
Fe+2: d6:t2,2,22g diamagnetic
Co+3: d6:t2,2,22g diamagnetic

Was this answer helpful?
1
Similar Questions
Q1
Consider the following complexes:
1) Fe(CO)5
2) Ni(CO)4
3) K4[Fe(CN)6]
4) Na3[Cu(SCN)4]
Which of the above complex obeys EAN rule?
View Solution
Q2
Consider the following complexes:
1. Fe(CO)s
2. Ni(CO)4
3. K4[Fe(CN)6]
4. Na3[Cu(SCN)4]
Which of the above complexes obey EAN rule?
View Solution
Q3

Atomic number of Mn. Fe and Co are 25, 26 and 27 respectively. Which of the following inner orbital octahedral complex ions are diamangetic?
(a) [Co(NH3)6]3+
(b) [Mn(CN)6]3
(c) [Fe(CN)6]4
(d) [Fe(CN)6]3

View Solution
Q4
The magnetic moments of complexes given below are in the order:

(I) [Ni(CO)4] (II) [Mn(CN)6]4 (III) [Cr(NH3)6]3+ (IV) [CoF6]3.

View Solution
Q5
The octahedral complex ions [FeCl6]3 and [Fe(CN)6]3 are both paramagnetic but the former is high spin and the latter is low spin.
Thus, CFSE for the complexes, [FeCl6]3 and [Fe(CN)6]3 are ___________ .

View Solution