Secondary pollutant which stops Hill reaction is [CBSE PMT 1999; Keral – McqOptions

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1.	Secondary pollutant which stops Hill reaction is [CBSE PMT 1999; Kerala CET 2002]
A.	Sulphuric acid
B.	Nitric acid
C.	Peroxyacetyl nitrate (PAN)
D.	Aldehydes
Answer» D. Aldehydes

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