Question

Colour when the flame test is performed with potassium nitrate

Answer 1

Answer:

Purpler or voilet flame color

Explanation:

Flame test is used to quickly identify metals. Metals burn with different characteristics colours. In order to perform a flame test, a nickel aluminium wire alloy is taken as the standard holding equipment. It is first dipped in HCL and then heated for a while just to see if no color is coming. Then put some pieces of potassium nitrate on wire and put it under the flame of Bunsen burner. A purple or violet flame color starts to appear

Answer 2

Flame test of potassium nitrate will produce purple color flame.

Explanation:

Flame test is important to detect the presence of particular element in the mixture which produces different color flame.

Hydrochloric acid is used and dipping the wire into the mixture of solution and then the it is hold in front of the flame will create purple color flame.Thus presence of potassium nitrate is detected by this.