What gas is produced when ammonium ions are treated with aqueous sodium hydroxide and warmed?

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Multiple Choice

What gas is produced when ammonium ions are treated with aqueous sodium hydroxide and warmed?

Explanation:
Ammonium ions act as a weak acid and react with the hydroxide ions from sodium hydroxide to release ammonia when heated. The key reaction is NH4+ + OH- → NH3 + H2O. Heating drives the formation and release of NH3 gas, which is why this is a classic test for ammonium ions. The other gases listed would not come from this mixture—hydrogen would need a different reaction (like metal with acid), while oxygen and chlorine come from other types of reactions not produced by ammonium ions with a base.

Ammonium ions act as a weak acid and react with the hydroxide ions from sodium hydroxide to release ammonia when heated. The key reaction is NH4+ + OH- → NH3 + H2O. Heating drives the formation and release of NH3 gas, which is why this is a classic test for ammonium ions. The other gases listed would not come from this mixture—hydrogen would need a different reaction (like metal with acid), while oxygen and chlorine come from other types of reactions not produced by ammonium ions with a base.

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