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Why Is The Blue Solution Of Brass Turns Brown Upon The Addition Of Potassium Iodide Solution? [Solved]
Weighed quantity of brass is dissolved in Concentrated HNO3 acid. Both copper and zinc dissolve in the acid as ,their nitrates , Reddish brown nitrogen dioxide gas evolves, when the alloy dissolves. Cupric nitrate, Cu(NO3)2 liberates equivalent quantity of iodine , when exess KI is added to the brass solution.
18CHEL26 Cu estimation in brass
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