Phenol-formaldehyde resin has a wide range of moldings.The phenolic resin retains properties at the freezing point; hence, it is difficult to determine its age.However, it Lanyards has immense consumption in manufacturing electrical equipment due to its insulating property.There are many types of topological indices such as degree-based topological indices, distance-based topological indices, etc.Topological Cultural Art indices correlate some physiochemical properties of chemical compounds.
In this article, the degree-based topological indices of phenol-formaldehyde resin have been determined.Furthermore, the Revan index, hyper Revan index, modified Revan index, sum connectivity Revan index, harmonic Revan index, and inverse Revan index have been calculated.