Bitumen completely dissolves in A. Carbon bisulphide B. Chloroform C. Coal tar D. All of these

Carbon bisulphide
Chloroform
Coal tar
All of these

The correct answer is D. All of these.

Bitumen is a sticky, black, and highly viscous liquid or solid that is found in natural deposits or can be made synthetically. It is a mixture of hydrocarbons and other organic compounds, and it is often used in road construction, roofing, and other applications.

Carbon bisulphide is a colorless, flammable liquid that is used as a solvent and in the production of rubber. Chloroform is a colorless, flammable liquid that is used as an anesthetic and in the production of refrigerants. Coal tar is a thick, black liquid that is produced when coal is heated in the absence of air.

All of these substances are capable of dissolving bitumen. This is because bitumen is a nonpolar substance, and these substances are all nonpolar solvents. Nonpolar solvents are able to dissolve nonpolar substances because they have similar chemical properties.

When bitumen is dissolved in a nonpolar solvent, the individual molecules of bitumen are separated from each other and are surrounded by molecules of the solvent. This allows the bitumen to flow more easily and to be used in a variety of applications.