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Nitrates is confirmed by ring test.The b...

Nitrates is confirmed by ring test.The brown colour of the ring is due to formation of:

A

ferrous nitrite

B

nitroso ferrous sulphate

C

ferrous nitrate

D

`FeSO_(4).NO_(2)`

Text Solution

Verified by Experts

The correct Answer is:
B
`2NO_(3)^(-)+4H_(2)SO_(4)+6Fe^(2+)to6Fe^(3+)+2NOuarr+4SO_(4)^(2-)+4H_(2)O`
`Fe^(2+)+NOuarr +SO_(4)^(2-) to [Fe(NO)]^(2+)SO_(4)^(2-)`
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