Multiple choice

Which of the following metal aquo complexes has/have only one unpaired electron?

i. [Ti(H2O)6]3+ ii. [Ni(H2O)6]2+ iii. [Cu(H2O)6]2+

  1. Only i

  2. Only ii

  3. Only iii

  4. Only i and ii

  5. Only i and iii
Reveal answer Fill a bubble to check yourself
E Correct answer
Explanation

[Ti(H2O)6]3+: (t2g)1 has one unpaired electron. [Cu(H2O)6]2+: (t2g)6(eg)3 has one unpaired electron.

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