JEE Main · Principles Related to Practical Chemistry · Quiz
5 real JEE Main questions on Principles Related to Practical Chemistry. Instant scoring and solutions, no signup — see where you stand in ~3 minutes.
Question 1 of 5
MEDIUMIn the systematic qualitative analysis of a salt, a student performs a brown ring test for nitrate ion. The chemical reaction responsible for the formation of the brown ring at the junction of two layers is: