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NEETChemistryp Block Elements (Group 13 & 14)

What color is formed when borax is heated with CoO in a Bunsen burner flame?

Options

  1. ARed
  2. BBlue
  3. CGreen
  4. DYellow

Correct answer

B. Blue

Step-by-step solution

When borax is heated in a Bunsen burner flame with CoO, a blue-colored Co(BO 2 ) 2 bead is formed.

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