Multiple choice

Which of the following pairs represents inner orbital complexes only?

  1. [Co(NH3)6]3+ and [Cr(H2O)6]3+

  2. [FeF6]3- and [Zn(H2O)6]2+

  3. [Co(NH3)6]3+ and [Zn(H2O)6]2+

  4. [FeF6]3- and [Cr(H2O)6]3+

  5. [Zn(H2O)6]2+ and [Cr(H2O)6]3+
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A Correct answer
Explanation

[Co(NH3)6]3+ is an inner orbital complex with octahedral geomtry (d2sp3 hybridisation). [Cr(H2O)6]3+ is an inner orbital complex with octahedral geomtry (d2sp3 hybridisation).

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