MEDIUMMCQ SINGLEIChO (Chemistry Olympiad)Inorganic ChemistryEnvironmental ChemistryPrevious Year Questions
The smog is essentially caused by the presence of : [Guj. CET 2004]
A.O2 and O3
B.O2 and N2
C.Oxides of sulphur and nitrogen✓ Correct
D.O3 and N2
Explanation
The smog is essentially caused by the presence of oxides of sulphur and nitrogen
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