How is carbon black obtained?
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: Option C
This Question Belongs to Chemistry GK Chapter Wise >> Non Metal And Its Compounds
Related Questions on Non Metal and Its Compounds
Red phosphorus is less reactive than yellow phosphorus because
A. it is red in colour
B. it is highly polymerised
C. it is insoluble in C2H5OH
D. it is hard
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