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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?

Options

  1. ACalcium
  2. BCopper
  3. CBarium
  4. DStrontium

Correct answer

B. Copper

Step-by-step solution

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

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