1
Question
What do you understand by (i) electron-deficient, (ii) electron-precise, and (iii) electron-rich compounds of hydrogen?
Open in App
Solution
(i) Electron deficient compounds of hydrogen do not have sufficient number
of electrons to form normal covalent bonds. Examples include hydrides of
group 13 such as BH3,AlH3 etc. They exist in
polymeric forms such as B2H6,Al2H6. Thus, they
make up their deficiency.
(ii) Electron precise compounds of hydrogen contain sufficient valence
electrons to form covalent bonds. Examples include group 14 hydrides
CH4,SiH4,GeH4,SnH4,PbH4 etc. These compounds
have tetrahedral shape.
(iii) Electron rich compounds of hydrogen contain excess valence electrons to form covalent bonds.
Examples include group 15 and group 17 hydrides such as NH3,PH3,HCl,HBr etc. These compounds contains lone pairs of electrons.
(ii) Electron precise compounds of hydrogen contain sufficient valence electrons to form covalent bonds. Examples include group 14 hydrides CH4,SiH4,GeH4,SnH4,PbH4 etc. These compounds have tetrahedral shape.
(iii) Electron rich compounds of hydrogen contain excess valence electrons to form covalent bonds.
Examples include group 15 and group 17 hydrides such as NH3,PH3,HCl,HBr etc. These compounds contains lone pairs of electrons.
Suggest Corrections
2
Similar questions