Add dilute nitric acid and silver nitrate
Result - A white precipitate
Added:
...... but be aware that Bromide and Iodide (and some other anions) will react almost accordingly. So it isn't too specific!
However, if you look very closely, the bromide ion turns a cream coloured precipitate, and the iodide ion, a yellow precipitate. Silver chloride and -bromide will turn in grey black after some time exposed to light (photographic illuminate-reaction)
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One common test for chloride ions involves using silver nitrate solution. When silver nitrate is added to a solution containing chloride ions, a white precipitate of silver chloride forms. This reaction can be used as a qualitative test for the presence of chloride ions in a solution.
The silver nitrate test provides a negative result on the presence of a chloride ion because silver chloride is insoluble in water and forms a white precipitate when silver ions react with chloride ions. This precipitate masks the presence of the chloride ion in the test solution, giving a negative result.
Iron chloride does not produce a distinctive color in a flame test. It typically appears as a pale yellow-green flame due to the presence of the chloride ion rather than the iron ion.
Chloride ion is colorless.
The symbol for the chloride ion is Cl-.
The chloride ion (Cl-) is larger than the oxygen ion (O2-). This is because the chloride ion has more electrons than the oxygen ion, resulting in a larger atomic radius and hence a larger ionic radius.