In the flame test of a mixture of salts, a green flame with blue centre was observed. Which one of the…

In the flame test of a mixture of salts, a green flame with blue centre was observed. Which one of the following cations may be present?
  1. Calcium
  2. Copper
  3. Barium
  4. Strontium

Solution

Metal Flame colour
Cu Green flame with blue centre
Ca Brick red
Ba Apple green
Sr Crimson

Asked in: JEE Main 2022 (24 Jun Shift 2)

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