Chemistry · Classification of organic compounds based on functional groups and those containing halogens, oxygen, nitrogen and sulphur, homologous series
Which derivative of coal is more viscous in nature?
Which derivative of coal is more viscous in nature?
- A. coke
- B. Coal tar
- C. coal gas
- D. Graphite
Step-by-step solution
Among the given options, coal tar is a dark, thick liquid obtained during destructive distillation of coal. It is highly viscous due to the presence of complex aromatic hydrocarbons and other organic compounds. Coke and graphite are solids, and coal gas is a gaseous mixture, all of which have negligible or lower viscosity compared to coal tar.