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Cold ferrous sulphate solution on absorp...

Cold ferrous sulphate solution on absorption of NO develops brown colour due to the formation of

A

Paramagnetic `[Fe(H_2O)_5 (NO)]SO_4`

B

Diamagnetic `[Fe(H_2O)_5 (N_3)]SO_4`

C

Paramagnetic `[Fe(H_2O)_5(NO_3)] (SO_4)_2`

D

Diamagnetic `[Fe(H_2O)_4(SO_4)]NO_3`

Text Solution

Verified by Experts

The correct Answer is:
A
`FeSO_4 + NO + 5H_2O to [Fe(H_2O)_5 (NO)]SO_4`
[Brown ring complex]
There is presence of three unpaired electrons.
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