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Which of the following combines with Fe(...

Which of the following combines with Fe(II) ions to form a brown complex?

A

`N_(2)O`

B

`NO`

C

`N_(2)O_(3)`

D

`N_(2)O_(5)`

Text Solution

Verified by Experts

The correct Answer is:
B
Brown ring test
`FeSO_(4).NO`
`NaNO_(3) + H_2SO_4 to NaHSO_4 + HNO_3`
`4overset(2+)(Fe)SO_(4) + 3H_(2)SO_(4) to 3overset(3+)(Fe)(SO_(4))_(4) + 4H_(2) + 2NO + 2HNO_(3)`
`FeSO_(4) + NO to underset("(Brown ring)")underset("Nitroferrous sulphate")(FeSO_(4).NO)`
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