The brown ring test for NO_2^- and NO_3^- is | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(C) The brown ring test is a common laboratory test used to detect the presence of nitrate ions $(NO_3^-)$ or nitrite ions $(NO_2^-)$ in a solution.Wh

Vedclass · Accepted Answer

$[Fe(H_2O)_5(NO)]^{2+}$

Vedclass · Answer

(C) The brown ring test is a common laboratory test used to detect the presence of nitrate ions $(NO_3^-)$ or nitrite ions $(NO_2^-)$ in a solution.When a freshly prepared ferrous sulfate $(FeSO_4)$ solution is added to the nitrate solution,followed by the careful addition of concentrated sulfuric acid $(H_2SO_4)$ along the sides of the test tube,a brown ring is formed at the junction of the two layers.This brown ring is due to the formation of the complex ion $[Fe(H_2O)_5(NO)]^{2+}$,which is known as pentaaquanitrosyliron$(II)$ ion.

The brown ring test for $NO_2^-$ and $NO_3^-$ is due to the formation of a complex ion with the formula:

Similar Questions

When concentrated sulphuric acid is added slowly to a solution of ferrous sulphate containing nitrate ion,a brown coloured ring is formed. The composition of the ring is

Which of the following is the correct increasing order of ligand field strength according to the spectrochemical series?

Which of the following complex ions has the least stability?

The formula of the product formed, when sodium thiosulphate solution is added to silver bromide is

Which one will give $Fe^{3+}$ ions in solution?

Vedclass Test Series

Exam Paper Generator

Online Exam Module