Reaction involved in the flame test for potassium ion
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Answer:
Potassium Ions: The most common method of identification of K+ is the flame test. The test may be performed on a small sample of the unknown treated with concentrated HCl or a few drops of solution unknown treated with concentrated HCl.
Answer:
Concentrated HCl is added to potassium salt to form a paste and convert into a paste and to convert the salt into it’s chloride, since chlorides of metals volatile and ionise when heated giving a characteristic colour of the non luminous flame of a Bunsen burner.
Athin platinum wire is first cleaned throughly by dipping it in the conc.HCl .it is then heated in the non luminous burner.Now a little paste of potassium chloride is taken on the wire and introduced to the the flame which will impart a lilac flame
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