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NEET levelSingle correct optionDifficulty 1 of 3qc116

Among the following cations, the one that gives a crimson-red flame is

A $Ba X^{2 +}$
B $Ca X^{2 +}$
C $Mg X^{2 +}$
D $Sr X^{2 +}$

Answer: D

Strontium salts give a crimson-red flame. Barium gives apple green, calcium gives brick red, and magnesium gives no characteristic colour.

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