If the colour of the flame obtained by performing the flame test of a substance with the help of platinum wire and concentrated $H C l$ is violet, then the basic radical in the salt is :

barium

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potassium

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calcium

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sodium

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Solution

The correct option is D potassium
If the colour of the flame obtained by performing the flame test of a substance with the help of platinum wire and concentrated HCl is violet, then the basic radical in the salt is potassium.
Note: In the flame test, barium, potassium, calcium and sodium gives apple green, violet, brick red and golden yellow colors respectively.

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