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Two test tube A and B contains solution of KBr and KI. How would you find which tube contains which salt?
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Explanation:
by adding AgNO3
ie., if AgNO3 is added to KBr then it gives AgBr which is a pale yellow ppt. and this ppt. will be soluble in NH3 solution.
if the same AgNO3 is added to the testube which has KI then we again get a pale yellow ppt. ie.,AgI. but this AgI is not soluble in NH3 solution
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