What is the nature of the hydrides formed by elments of 13 group?

Explanation

`to` Group 13 elements are belongs to p-block of periodic table.
`to` Generally p-block elements forms covalent (or) molecular hydrides.
`to` These molecular hydrides are further classified into 3 types
i) Electron deficient hydrides
ii) Electron - precise hydrides
iii) Electron - rich hydrides
`to` Group - 13 elements forms electron deficient hydrides. Electron deficient hydrides are the molecular hydrides which have less no. of electrons to write the lewis structure.
Eg : Diborane `(B_(2)H_(6))`
`to` These hydrides acts as Lewis acids. Lewis acids accepts electron pairs and forms co-ordinate covalent bonds with donors.