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Multiple choice

Which of the following sets contains colourless aquated transition metal ions?

  1. Sc3+, Ti3+, Zn2+

  2. Sc3+, Ti4+, Cu2+

  3. Sc3+, Ti4+, Zn2+

  4. Ti3+, V4+, Zn2+

  5. Al3+, B3+, Si4+

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Yes, all have no unpaired electrons, hence all are colourless.

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