Question

what are the possibilities of bond formation by a carbon atom

Answer 1

carbon–carbon bondis acovalent bondbetween twocarbonatoms.[1]The most commonform is thesingle bond: a bond composed of twoelectrons, one from each of the two atoms. The carbon–carbon single bond is asigma bondand is formed between onehybridizedorbital from each of the carbon atoms. Inethane, the orbitals are sp3-hybridizedorbitals, but single bonds formed between carbon atoms with other hybridizations do occur (e.g. sp2to sp2). In fact, the carbon atoms in the single bond need not be of the same hybridization. Carbon atoms can alsoformdouble bondsin compounds calledalkenesortriple bondsin compounds calledalkynes. A double bond is formed with an sp2-hybridized orbital and a p-orbital that is not involved in the hybridization. A triple bond is formed with an sp-hybridized orbital and two p-orbitals from eachatom. The use of the p-orbitals forms api bond.