Atmospheric Pollution
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CHXI14:ENVIRONMENTAL CHEMISTRY

318464 The pollutants which come directly in the air from sources are called primary pollutants. Primary pollutants are sometimes converted into secondary pollutants. Which of the following belongs to secondary air pollutants?

1 CO
2 Hydrocarbon
3 Peroxyacetyl nitrate
4 NO
NCERT Exemplar
CHXI14:ENVIRONMENTAL CHEMISTRY

318465 Which of the following statements are major gaseous pollutants present in the troposphere?
I. \(\mathrm{H}_{2} \mathrm{~S}\)
II. Oxides of sulphur, nitrogen and carbon
III. \(\mathrm{O}_{3}\)
Choose the correct statements.

1 Both I and II
2 Both I and III
3 I, II and III
4 None of these
CHXI14:ENVIRONMENTAL CHEMISTRY

318466 The chemical formula of PAN is

1 \(\mathrm{CH}_{3} \mathrm{COONO}_{2}\)
2 \(\mathrm{CH}_{3} \mathrm{COOONO}_{2}\)
3 \(\mathrm{O}_{2} \mathrm{~N}-\mathrm{COOOCH}_{3}\)
4 \(\mathrm{CH}_{3} \mathrm{COONO}_{2}\)
CHXI14:ENVIRONMENTAL CHEMISTRY

318467 Among the following, the group of gases that cause photochemical smog is

1 \({{\text{O}}_{\text{3}}}{\text{,PAN}}\,\,{\text{and}}\,\,{\text{CO}}\)
2 \({\text{HC, NO and PAN}}\)
3 \({{\text{O}}_{\text{2}}}{\text{,PAN}}\,\,{\text{and}}\,\,{\text{N}}{{\text{O}}_{\text{2}}}\)
4 \({{\text{O}}_{\text{3}}}{\text{,PAN}}\,\,{\text{and}}\,\,{\text{N}}{{\text{O}}_{\text{2}}}\)
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CHXI14:ENVIRONMENTAL CHEMISTRY

318464 The pollutants which come directly in the air from sources are called primary pollutants. Primary pollutants are sometimes converted into secondary pollutants. Which of the following belongs to secondary air pollutants?

1 CO
2 Hydrocarbon
3 Peroxyacetyl nitrate
4 NO
NCERT Exemplar
CHXI14:ENVIRONMENTAL CHEMISTRY

318465 Which of the following statements are major gaseous pollutants present in the troposphere?
I. \(\mathrm{H}_{2} \mathrm{~S}\)
II. Oxides of sulphur, nitrogen and carbon
III. \(\mathrm{O}_{3}\)
Choose the correct statements.

1 Both I and II
2 Both I and III
3 I, II and III
4 None of these
CHXI14:ENVIRONMENTAL CHEMISTRY

318466 The chemical formula of PAN is

1 \(\mathrm{CH}_{3} \mathrm{COONO}_{2}\)
2 \(\mathrm{CH}_{3} \mathrm{COOONO}_{2}\)
3 \(\mathrm{O}_{2} \mathrm{~N}-\mathrm{COOOCH}_{3}\)
4 \(\mathrm{CH}_{3} \mathrm{COONO}_{2}\)
CHXI14:ENVIRONMENTAL CHEMISTRY

318467 Among the following, the group of gases that cause photochemical smog is

1 \({{\text{O}}_{\text{3}}}{\text{,PAN}}\,\,{\text{and}}\,\,{\text{CO}}\)
2 \({\text{HC, NO and PAN}}\)
3 \({{\text{O}}_{\text{2}}}{\text{,PAN}}\,\,{\text{and}}\,\,{\text{N}}{{\text{O}}_{\text{2}}}\)
4 \({{\text{O}}_{\text{3}}}{\text{,PAN}}\,\,{\text{and}}\,\,{\text{N}}{{\text{O}}_{\text{2}}}\)
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CHXI14:ENVIRONMENTAL CHEMISTRY

318464 The pollutants which come directly in the air from sources are called primary pollutants. Primary pollutants are sometimes converted into secondary pollutants. Which of the following belongs to secondary air pollutants?

1 CO
2 Hydrocarbon
3 Peroxyacetyl nitrate
4 NO
NCERT Exemplar
CHXI14:ENVIRONMENTAL CHEMISTRY

318465 Which of the following statements are major gaseous pollutants present in the troposphere?
I. \(\mathrm{H}_{2} \mathrm{~S}\)
II. Oxides of sulphur, nitrogen and carbon
III. \(\mathrm{O}_{3}\)
Choose the correct statements.

1 Both I and II
2 Both I and III
3 I, II and III
4 None of these
CHXI14:ENVIRONMENTAL CHEMISTRY

318466 The chemical formula of PAN is

1 \(\mathrm{CH}_{3} \mathrm{COONO}_{2}\)
2 \(\mathrm{CH}_{3} \mathrm{COOONO}_{2}\)
3 \(\mathrm{O}_{2} \mathrm{~N}-\mathrm{COOOCH}_{3}\)
4 \(\mathrm{CH}_{3} \mathrm{COONO}_{2}\)
CHXI14:ENVIRONMENTAL CHEMISTRY

318467 Among the following, the group of gases that cause photochemical smog is

1 \({{\text{O}}_{\text{3}}}{\text{,PAN}}\,\,{\text{and}}\,\,{\text{CO}}\)
2 \({\text{HC, NO and PAN}}\)
3 \({{\text{O}}_{\text{2}}}{\text{,PAN}}\,\,{\text{and}}\,\,{\text{N}}{{\text{O}}_{\text{2}}}\)
4 \({{\text{O}}_{\text{3}}}{\text{,PAN}}\,\,{\text{and}}\,\,{\text{N}}{{\text{O}}_{\text{2}}}\)
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CHXI14:ENVIRONMENTAL CHEMISTRY

318464 The pollutants which come directly in the air from sources are called primary pollutants. Primary pollutants are sometimes converted into secondary pollutants. Which of the following belongs to secondary air pollutants?

1 CO
2 Hydrocarbon
3 Peroxyacetyl nitrate
4 NO
NCERT Exemplar
CHXI14:ENVIRONMENTAL CHEMISTRY

318465 Which of the following statements are major gaseous pollutants present in the troposphere?
I. \(\mathrm{H}_{2} \mathrm{~S}\)
II. Oxides of sulphur, nitrogen and carbon
III. \(\mathrm{O}_{3}\)
Choose the correct statements.

1 Both I and II
2 Both I and III
3 I, II and III
4 None of these
CHXI14:ENVIRONMENTAL CHEMISTRY

318466 The chemical formula of PAN is

1 \(\mathrm{CH}_{3} \mathrm{COONO}_{2}\)
2 \(\mathrm{CH}_{3} \mathrm{COOONO}_{2}\)
3 \(\mathrm{O}_{2} \mathrm{~N}-\mathrm{COOOCH}_{3}\)
4 \(\mathrm{CH}_{3} \mathrm{COONO}_{2}\)
CHXI14:ENVIRONMENTAL CHEMISTRY

318467 Among the following, the group of gases that cause photochemical smog is

1 \({{\text{O}}_{\text{3}}}{\text{,PAN}}\,\,{\text{and}}\,\,{\text{CO}}\)
2 \({\text{HC, NO and PAN}}\)
3 \({{\text{O}}_{\text{2}}}{\text{,PAN}}\,\,{\text{and}}\,\,{\text{N}}{{\text{O}}_{\text{2}}}\)
4 \({{\text{O}}_{\text{3}}}{\text{,PAN}}\,\,{\text{and}}\,\,{\text{N}}{{\text{O}}_{\text{2}}}\)