Question

What are polycyclic aromatic hydrocarbons? How are they produced? Why are they harmful?​

Answer 1

Answer:

• The hydrocarbons containing more than two benzene rings fused together are called polycyclic aromatic hydrocarbons.

• They are produced by incomplete combustion of tobacco, coal and petroleum.

• These compounds are toxic and cancer-causing (called carcinogenic). Hence, they are harmful.

Answer 2

Answer:

Polycyclic aromatic hydrocarbons (PAHs) are made whenever substances are burned. PAHs are also found at former coal-gasification sites. Breathing smoke or coming into contact with contaminated soil exposes people to PAHs. Some PAHs may cause cancer and may affect the eyes, kidneys, and liver.

Explanation: