Multiple choice

Which of the following sets represents diamagnetic metal ions only?

  1. Mn3+, Fe2+, Ni2+, Zn2+

  2. Ti4+, Ni2+, Cu+, Zn2+

  3. Mn3+, Fe3+, Ni2+, Cu2+

  4. Sc3+, Fe3+, Ni2+, Cu2+

  5. Sc3+, Ti4+, Cu+, Zn2+
Reveal answer Fill a bubble to check yourself
E Correct answer
Explanation

Sc3+: 3d0, No unpaired electrons; diamagnetic. Ti4+: 3d0, No unpaired electrons; diamagnetic. Cu+: 3d10, 1 unpaired electron; diamagnetic. Zn2+: 3d10, No unpaired electrons; diamagnetic.

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