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Inorganic compounds generally do not have C-H bonds, while organic compounds do have such bonds. The distinction between inorganic and organic chemistry, however, is far from absolute.

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How many tetrahedral and octahedral holes are there in a bcc unit cell?

It's a partial answer : The diagram shows two places where irregular octahedral voids exist in a BCC lattice. By symmetry you'll be able to say that there exist: 6 octahedral voids on each surface an …
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