While perfoming the flame test in the systematic P analysis of cati...

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While perfoming the flame test in the systematic
P analysis of cations the colour of the flame observed

W by naked eye is Crimson red while Colour of the flame observed through blue glass is purple ,it may be-
(1) \( \mathrm{Cu}^{2+} \)
(2) \( \mathrm{Sr}^{2+} \)
(3) \( \mathrm{Ba}^{2+} \)
(4) \( \mathrm{Ca}^{2+} \)
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