How will you prove that ammonium ion NH4+ is present in a given sample?
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Ammonium ions can be identified in a solution by adding dilute sodium hydroxide solution and gently heating. If ammonium ions are present, they will be converted to ammonia gas. Ammonia has a characteristic choking smell. It also turns damp red litmus paper or damp universal indicator paper blue.
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To prove the presence of ammonium ions ...(NH4)+ in a solution one have to add Silver salts to get white precipitation ...and ...like NH4Cl...
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