Question

what is meant by electron rich compounds of hydrogen and give an example​

Answer 1

• Electron rich compounds of hydrogen contain excess valence electrons to form covalent bonds.
• Examples include group 15 and group 17 hydrides such as NH 3 ,PH 3,HCl,HBr etc. These compounds contains lone pairs of electrons.

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Answer 2

Explanation:

Electron rich: The type of hydrides which have more number of electrons than required for bonding are called electron-rich hydrides. The excess number of electrons are mainly the lone pair of electrons on the central atom. These types of compounds are usually formed by groups 15, 16 and 17 elements.

examples:

Electron-rich compounds of hydrogen :- Some elements like N, P S Cl etc have more electrons than required for bonding. Some of their compounds are NH3, PH3, and HCl. Since there is a excess of electrons these hydrides are called electron-rich compounds of hydrogen.