The molecule , which are electron deficient having tendency to form back bonding, in which transfer of lone pair of electron from filled orbital of an atom to the vacant orbital of the adjacent atom. While some electron deficient species which are not capable to form back bonding, then driving forces occurs for dimerisation/polymerisation to achieve octet temporily or permanently by the monomeric species.
Which of the following readily gets combined with lewis base `(NH_(3),CH_(3)NH_(2),C_(5)H_(5)N "etc")`
A. `C_(2)H_(6)`
B. `I_(2)Cl_(6)`
C. `B_(2)H_(6)`
D. `(BeCl_(2))_(n)`
