Multiple choice

Which of the statements is/are correct? A. Cr2+ ions are unstable in aqueous solution. B. Energy of 3d and 4s orbitals are the same for a hydrogen atom. C. Degenerate orbitals possess different energies.

  1. Only A

  2. Only B

  3. Only C

  4. Only A and B

  5. Only A and C
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Cr2+ ions are unstable in aqueous solution, i.e highly reactive in aqueous solution. It is a correct statement. Energy of 3d and 4s orbitals are the same for a hydrogen atom.

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