General Knowledge - General Science - Discussion

Discussion Forum : General Science - Elements and Metals (Q.No. 54)
54.
Which metal pollute the air of a big city?
Copper
Chromium
Lead
Cadmium
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
12 comments Page 2 of 2.

Debasis said:   6 years ago
Due to the presence of tetra ethyl lead as an anti knocking agent present in petroleum product.
(1)

Nishita sharma said:   11 months ago
Lead is a poisonous gas.


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