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In the SN1CB mechanism, what is the most likely molecular geometry around the central Co atom in the [Co(NH3)4(NH2)]2+ intermediate?A.TetrahedralB.OctahedralC.Trigonal bipyramidalD.Square pyramidalSubmit

Question

In the SN1CB mechanism, what is the most likely molecular geometry around the central Co atom in the [Co(NH3)4(NH2)]2+ intermediate?A.TetrahedralB.OctahedralC.Trigonal bipyramidalD.Square pyramidalSubmit

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Solution

The most likely molecular geometry around the central Co atom in the [Co(NH3)4(NH2)]2+ intermediate in the SN1CB mechanism is Octahedral (B).

Here's why:

The cobalt atom in this complex is surrounded by six ligands: four ammonia (NH3) molecules and two amine (NH2) groups. Each of these ligands is a monodentate, meaning they each form one bond with the cobalt atom.

In complexes where a central atom is surrounded by six monodentate ligands, the most common geometry is octahedral. This is because the ligands will arrange themselves to be as far apart from each other as possible, which in this case results in an octahedral shape.

So, the answer is B. Octahedral.

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