Question

What do you mean by electron rich electron deficient and electronn precise hybride?

Answer 1

electron rich means having more more electron than needed, electron deficient means that there are less electrons than needed and electron precise means there precise number of electrons that are needed

Answer 2

Answer :

Electron deficient hydrides: Compounds in which central atom has incomplete octet, are called electron deficient hydrides. For example, BeH2, BH3 are electron deficient hydrides.

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(ii) Electron precise hydrides: Those compounds in which exact number of electrons are present in central atom or the central atom contains complete octet are called precise hydrides e.g., CH4, SiH4, GeH4 etc. are precise hydrides.

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(iii) Electron rich hydrides: Those compounds in which central atom has one or more lone pair of excess electrons are called electron rich hydrides, e.g.,NH3, H2O.