Question

what is bond explain and how many types

Answer 1

A chemical bond is a lasting attraction between atoms, ions or molecules that enables the formation of chemical compounds.

Answer 2

Carbon has self linkage property and it is linked by hydrogen or any functional group by "-"like structure called bonds.

There are 3 types of bonds
1: Single bond {CnH2n+2}
2: Double bond { CnH2n}
3: Triple bond {CnH2n-2}