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NEET levelSingle correct optionDifficulty 1 of 3qa059

A salt imparts a brick-red colour to a non-luminous Bunsen flame. The cation present is

A $Ca X^{2 +}$
B $Ba X^{2 +}$
C $Na X^{+}$
D $K X^{+}$

Answer: A

Calcium gives a brick-red flame, barium an apple-green one, potassium a lilac one and sodium a persistent golden-yellow one. So the cation is

Ca X^{2 +}

.

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