FeSO_4 gives a brown ring with ........ | vedclass

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Question

(C) The brown ring test is used to detect the presence of nitrate ions $(NO_3^-)$ in a solution. When $FeSO_4$ is added to a solution containing nitra

Vedclass · Accepted Answer

$NO$

Vedclass · Answer

(C) The brown ring test is used to detect the presence of nitrate ions $(NO_3^-)$ in a solution. When $FeSO_4$ is added to a solution containing nitrate ions followed by the addition of concentrated $H_2SO_4$ along the sides of the test tube,a brown ring is formed at the junction of the two layers. The brown ring is due to the formation of the complex $[Fe(H_2O)_5(NO)]SO_4$. In this reaction,the nitrate ion is reduced to nitric oxide $(NO)$,which then reacts with the hydrated ferrous ion to form the brown-colored complex.

$FeSO_4$ gives a brown ring with ........

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