What are electrons deficient and electron rich compounds of hydrogen? Give examples.

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Solution

The hydrides which have tendency to accept electrons in order to make octet. Group 13 hydrides(compounds of hydrogen), mainly hydrides of Aluminium and Barium are called electron deficient hydrides. For example: $B H_{3}$

Electron rich hydride is the type of hydride in which the number of electrons present are more than the number of electron required to make the octet. The hydrides of group 15 are electron rich. For example: $N H_{3}$

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