How is carbon black obtained ?
By heating wood at high temperature in absence of air
By heating coal at high temperature in absence of air
By burning hydrocarbons in a limited supply of air
By heating coal at high temperature in presence of air
Answer is Right!
Answer is Wrong!
This question was previously asked in
UPSC NDA-1 – 2018
Methods like the furnace black process or channel black process involve burning hydrocarbon feedstock (like natural gas or oil) with insufficient oxygen, leading to the formation of fine carbon particles (soot), which is collected as carbon black.