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Bunsen flame is rich with electrons. When alkali metal ions are introduced into the Bunsen flame electronic transition occur with in the metal atoms and ions formed in the flame. Which of the following is not an application of this tendency.

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In the determination of the amount of alkali metal in a given sample.

In the detection of different alkali metals.

In the manufacture of colourful crackers.

In the production of colourful lamps used in advertising boards.

answer is D.

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In the production of colourful lamps used in advertizing boards noble gases are used follow NCERT.

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