Question

(13) Write the hybridization and shape of [CoF6]3- and [Ni(CN)4]2-

Answer 1

•The atomic number of Co is 27 and its valence shell electronic configuration is 3d74s2.

Co is in +3 oxidation state in the complex [CoF6]3-.
Hence, [CoF6]3- is sp3d2 hybridized and it is octahedral in shape.

•The atomic number of Ni is 28 and its valence shell electronic configuration is 3d84s2.

Ni is in +2 oxidation state in the complex [Ni(CN)4]2–.
Hence, [Ni(CN)4]2– is dsp2 hybridized and it is square planar in shape.



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Answer 2

Concept :The based on the hybridization of orbital which intermix to have stable orbital

Given :Write the hybridization and shape of [CoF6]3- and [Ni(CN)4]2-

Find : To find Hybridization

Solution : •The atomic number of Co is 27 and its valence shell electronic configuration is 3d74s2.

Co is in +3 oxidation state in the complex [CoF6]3-.

Hence, [CoF6]3- is sp3d2 hybridized and it is octahedral in shape.

•The atomic number of Ni is 28 and its valence shell electronic configuration is 3d84s2.

Ni is in +2 oxidation state in the complex [Ni(CN)4]2–.

Hence, [Ni(CN)4]2– is dsp2 hybridized and it is square planar in shape.

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