Which one of the following metals pollutes the air of a city having large number of automobiles?
A. Cadmium
B. Chromium
C. Lead
D. Copper
Answer: Option C
Solution(By Examveda Team)
Tetra ethyl lead (C2H5)4 Pb is used as an antiknock compound . It is mixed with petrol to improve its quality. Therefore automobile exhausts lead, which pollutes city.This Question Belongs to General Knowledge >> Chemistry
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