A) cadmium
B) mercury
C) copper
D) lead
Correct Answer: D
Solution :
Lead is present in the petroleum in the form of \[Pb{{(C{{H}_{3}})}_{4}}\]and \[Pb{{({{C}_{2}}{{H}_{5}})}_{4}}\]as antic nocking agent. It is the most important pollutant of automobile. It is known to damage kidney, liver, reproductive disorder and neurological disorders.
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