Answer This???

rasrajmishra

New member
X is produced by the incomplete combustion of heavy petroleum products such as FCC tar, coal tar, ethylene cracking tar, and a small amount from vegetable oil.

The most common use is as a pigment and reinforcing phase in automobile tires. X particles are also employed in some radar absorbent materials and in photocopier and laser printer toner.
Y is the world’s largest producer of X.

Identify X & Y?
 
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