pls explain

Asked by mufeedatvp2000 | 17th Apr, 2020, 09:22: AM

Expert Answer:

correct option is 4.
Only Aluminium can extent its valency because it has empty d-orbitals, whereas carbon and boron do not have d-orbitals to extend their valency.
Hence reactions given in option (1) and (2) are not possible.

Answered by Ramandeep | 17th Apr, 2020, 12:10: PM