Question

among the following which one is paramagnetic.
1.{Co(NH3)6}^+3
2.{NiCl4}^2-
3.{fe(CN)6}^4+
4.k2{NiF6}
correct answer............​

Answer 1

Answer:

I think the answer is option ( 1)

Explanation:

it's paramagnetic...

Answer 2

Answer:

For Option 1).

Atomic no. of cobalt = 27

Electrons in Co³+ ion = 27 - 3 = 24

+ 6 molecules of NH3 involving in this complex.

So the hybridisation take place by these 6 molecules of NH3.

And Thus All the Electrons Be in pairs.

As all the Electrons are paired .That's Why This complex is Diamagnetic having electrons = 24 +6 = 30