Molecular hydrides are classified as electron-deficient, electron precise and electron-rich compounds. Explain each type with two examples.

Answers (1)

There are three major types of molecular hydrides.

Electron precise hydrides are the ones that have just enough exact number of electrons to facilitate normal covalent bonds. These are the hydrides which are primarily comprised of group 14 elements: CH_{4}.

Electron deficient hydrides are the ones which do not possess enough number of electrons to facilitate normal covalent bonds. Hydrides of group 13 a prime examples; B_2H_6.

Electron rich hydrides are ones which have an excess number of electrons remaining after normal covalent bonds. Elements of group 15 16 17 are prime examples; NH_3.

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