The colour of the flame of \( \mathrm{Ba}^{2+} \) cation when \( \m...

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The colour of the flame of \( \mathrm{Ba}^{2+} \) cation when
\( \mathrm{P} \)
seeing from the naked eye is :
W
(1) Purple
(2) Apple Green
(3) Bluish Green
(4) Red
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