Why is there a Yellow colour when i add Nitric Acid to Aqueous Potassium Bromide?
Friday, November 27th, 2009 at
12:13 PM
I added HNO3 to Aqueous KBr, why did the solution turn yellowish?
Filed under: Potassium Questions
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Nitric acid is an oxidising agent (even when it is quite dilute) so the most likely reason for the colour is that a small amount of bromide ion has been oxidised to bromine, and at low concentrations the solution will look yellowish.