How is carbon black obtained ?

Options

A. By heating wood at high temperature in absence of air
B. By heating coal at high temperature in absence of air
C. By burning hydrocarbons in a limited supply of air
D. by heating coal at high temperature in presence of air

Answer

C

Explanation

Carbon black is obtained by bunning hydrocarbons in a limited supply of air. Carbon black particles are usually spherical in shape and less regularly crystalline than graphite.