Question

what is brown ring test.... ​

Answer 1

Answer:

A nitrate test, known as the brown ring test can be performed by adding iron(II) sulfate to the solution, then slowly adding concentrated sulfuric acid and watching for a brown ring on the test tube, which will indicate the presence of the nitrate ion.

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Answer 2

Answer:

Explanation:

The brown ring test is performed by adding iron (II) sulfate to the sample and then a concentrated acid, typically sulfuric acid. ... In an acidic environment, the iron (II) sulfate and the nitrates react with each other to form an iron-nitrate compound that forms a brown ring.