Which of the following molecules is present i | vedclass

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(B) Photochemical smog is a type of smog produced when ultraviolet light from the sun reacts with nitrogen oxides in the atmosphere. It is visible as

Vedclass · Accepted Answer

$NO_2$

Vedclass · Answer

(B) Photochemical smog is a type of smog produced when ultraviolet light from the sun reacts with nitrogen oxides in the atmosphere. It is visible as a brown haze and is most prominent during the morning and afternoon,especially in densely populated,warm cities. Photochemical smog is a mixture of ozone,nitric acid,aldehydes,peroxyacyl nitrates $(PAN)$,and other secondary pollutants. Among the given options,$NO_2$ is a primary precursor and a key component involved in the formation of photochemical smog. Hence,the correct option is $B$.

Column-$I$	Column-$II$
$(A)$ Acid rain	$(1)$ $CHCl_2-CHF_2$
$(B)$ Photochemical smog	$(2)$ $CO$
$(C)$ Combination with hemoglobin	$(3)$ $CO_2$
$(D)$ Depletion of ozone layer	$(4)$ $SO_2$
	$(5)$ Unsaturated hydrocarbons

Which of the following molecules is present in photochemical smog?

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Match the items in Column-$I$ with the compounds in Column-$II$.

Column-$I$ Column-$II$

$(A)$ Acid rain $(1)$ $CHCl_2-CHF_2$

$(B)$ Photochemical smog $(2)$ $CO$

$(C)$ Combination with hemoglobin $(3)$ $CO_2$

$(D)$ Depletion of ozone layer $(4)$ $SO_2$

$(5)$ Unsaturated hydrocarbons

Classical smog is a mixture of .....

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