two tests for concentrated nitric acid

Expert Answers
thilina-g eNotes educator| Certified Educator

For concentrated nitric acid you can do the following reactions,

1) Put one drop of your soultion on clean Brass, it should give blue-green color

2)Put one drop of your soultion on clean Nickel, it should give pale green color

debashreebanerjee | Student

1. When copper turnings react with conc. HNO3, reddish brown fumes of nitrogen dioxide gas evolves.

2. Nitric Acid satisfies the brown ring test.