Question

Test
of Nitric acid.​

Answer 1

Answer:

The nitrate ion can easily be identified by heating copper turnings along with concentrated sulfuric acid. Brown,

pungent effervescence is observed which turns blue litmus red. Here sulphuric acid reacts with the nitrate ion to form nitric acid. Nitric acid then reacts with the copper turnings to form nitric oxide.

Explanation:

See I have have you the image also..

Answer 2

Answer:

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The nitrate ion can easily be identified by heating copper turnings along with concentrated sulfuric acid. Brown, pungent effervescence is observed which turns blue litmus red. Here sulphuric acid reacts with the nitrate ion to form nitric acid. Nitric acid then reacts with the copper turnings to form nitric oxide.

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How do you test the purity of nitric acid?

You can try 5 ml sample,add 50 ml 4% ammonium oxalate,plus methyl red indicator,titrate to yellow end point with 1.0 normal NaOH ...calculation is-vOlume of titrant multiply by 1.26 and you get %volume of nitric acid,you can also try uv analysis using uv spectrophotometer...

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Which test are more popular for nitric acid identification?

Diphenylamine may be used as a wet chemical test for the presence of the nitrate ion. In this test, a solution of diphenylamine and ammonium chloride in sulfuric acid is used. In the presence of nitrates, diphenylamine is oxidized, giving a blue coloration.

hope it helps you ¡!

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