318438
The carbondioxide content in atmospheric air is about
1 \(3.34 \%\)
2 \(6.5 \%\)
3 \(0.034 \%\)
4 \(0.34 \%\)
Explanation:
Conceptual Questions
CHXI14:ENVIRONMENTAL CHEMISTRY
318439
Which of the following is present in highest concentration in exhaust emission?
1 \(\mathrm{CO}_{2}\)
2 Hydrocarbons
3 \(\mathrm{CO}\)
4 Oxides of nitrogen
Explanation:
\(\mathrm{CO}\) is present in highest concentration in exhaust emission.
CHXI14:ENVIRONMENTAL CHEMISTRY
318440
Which oxide of nitrogen is not a common pollutant introduced into the atmosphere both due to natural and human activity?
1 \(\mathrm{N}_{2} \mathrm{O}_{5}\)
2 \(\mathrm{N}_{2} \mathrm{O}\)
3 \({\text{NO}}\)
4 \(\mathrm{NO}_{2}\)
Explanation:
The oxidised hydrocarbons and ozone in the presence of humidity cause photochemical smog. Hydrocarbons \(+\mathrm{O}_{2}, \mathrm{NO}_{2}, \mathrm{NO}, \mathrm{O}_{3} \longrightarrow\) Peroxides, formaldehyde, peroxyacetylnitrate (PAN), acrolein, etc. Hence chloroflurocarbons are not common component of photochemical smog.
NEET - 2018
CHXI14:ENVIRONMENTAL CHEMISTRY
318441
The pollution due to oxides of sulphur gets enhanced due to the presence of: (a) particulate matter (b) ozone (c) hydrocarbons (d) hydrogen peroxide Choose the most appropriate answer from the options given below:
1 (a), (b), (d) only
2 (b), (c), (d) only
3 (a), (c), (d) only
4 (a), (d) only
Explanation:
The presence of particulate matter in polluted air catalyses the oxidation of sulphur dioxide tosulphur trioxide. \({\text{2S}}{{\text{O}}_{\text{2}}}\left( {\text{g}} \right){\text{ + }}{{\text{O}}_{\text{2}}}\left( {\text{g}} \right) \to {\text{2S}}{{\text{O}}_{\text{3}}}\left( {\text{g}} \right)\) The reaction can also be promoted by ozone and hydrogen peroxide. \({\text{S}}{{\text{O}}_{\text{2}}}\left( {\text{g}} \right){\text{ + }}{{\text{O}}_{\text{3}}}\left( {\text{g}} \right) \to {\text{S}}{{\text{O}}_{\text{3}}}\left( {\text{g}} \right){\text{ + }}{{\text{O}}_{\text{2}}}\left( {\text{g}} \right)\) \({\text{S}}{{\text{O}}_{\text{2}}}\left( {\text{g}} \right){\text{ + }}{{\text{H}}_{\text{2}}}{{\text{O}}_{\text{2}}}{\text{(l)}} \to {{\text{H}}_{\text{2}}}{\text{S}}{{\text{O}}_{\text{4}}}{\text{(aq)}}\)
318438
The carbondioxide content in atmospheric air is about
1 \(3.34 \%\)
2 \(6.5 \%\)
3 \(0.034 \%\)
4 \(0.34 \%\)
Explanation:
Conceptual Questions
CHXI14:ENVIRONMENTAL CHEMISTRY
318439
Which of the following is present in highest concentration in exhaust emission?
1 \(\mathrm{CO}_{2}\)
2 Hydrocarbons
3 \(\mathrm{CO}\)
4 Oxides of nitrogen
Explanation:
\(\mathrm{CO}\) is present in highest concentration in exhaust emission.
CHXI14:ENVIRONMENTAL CHEMISTRY
318440
Which oxide of nitrogen is not a common pollutant introduced into the atmosphere both due to natural and human activity?
1 \(\mathrm{N}_{2} \mathrm{O}_{5}\)
2 \(\mathrm{N}_{2} \mathrm{O}\)
3 \({\text{NO}}\)
4 \(\mathrm{NO}_{2}\)
Explanation:
The oxidised hydrocarbons and ozone in the presence of humidity cause photochemical smog. Hydrocarbons \(+\mathrm{O}_{2}, \mathrm{NO}_{2}, \mathrm{NO}, \mathrm{O}_{3} \longrightarrow\) Peroxides, formaldehyde, peroxyacetylnitrate (PAN), acrolein, etc. Hence chloroflurocarbons are not common component of photochemical smog.
NEET - 2018
CHXI14:ENVIRONMENTAL CHEMISTRY
318441
The pollution due to oxides of sulphur gets enhanced due to the presence of: (a) particulate matter (b) ozone (c) hydrocarbons (d) hydrogen peroxide Choose the most appropriate answer from the options given below:
1 (a), (b), (d) only
2 (b), (c), (d) only
3 (a), (c), (d) only
4 (a), (d) only
Explanation:
The presence of particulate matter in polluted air catalyses the oxidation of sulphur dioxide tosulphur trioxide. \({\text{2S}}{{\text{O}}_{\text{2}}}\left( {\text{g}} \right){\text{ + }}{{\text{O}}_{\text{2}}}\left( {\text{g}} \right) \to {\text{2S}}{{\text{O}}_{\text{3}}}\left( {\text{g}} \right)\) The reaction can also be promoted by ozone and hydrogen peroxide. \({\text{S}}{{\text{O}}_{\text{2}}}\left( {\text{g}} \right){\text{ + }}{{\text{O}}_{\text{3}}}\left( {\text{g}} \right) \to {\text{S}}{{\text{O}}_{\text{3}}}\left( {\text{g}} \right){\text{ + }}{{\text{O}}_{\text{2}}}\left( {\text{g}} \right)\) \({\text{S}}{{\text{O}}_{\text{2}}}\left( {\text{g}} \right){\text{ + }}{{\text{H}}_{\text{2}}}{{\text{O}}_{\text{2}}}{\text{(l)}} \to {{\text{H}}_{\text{2}}}{\text{S}}{{\text{O}}_{\text{4}}}{\text{(aq)}}\)
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CHXI14:ENVIRONMENTAL CHEMISTRY
318438
The carbondioxide content in atmospheric air is about
1 \(3.34 \%\)
2 \(6.5 \%\)
3 \(0.034 \%\)
4 \(0.34 \%\)
Explanation:
Conceptual Questions
CHXI14:ENVIRONMENTAL CHEMISTRY
318439
Which of the following is present in highest concentration in exhaust emission?
1 \(\mathrm{CO}_{2}\)
2 Hydrocarbons
3 \(\mathrm{CO}\)
4 Oxides of nitrogen
Explanation:
\(\mathrm{CO}\) is present in highest concentration in exhaust emission.
CHXI14:ENVIRONMENTAL CHEMISTRY
318440
Which oxide of nitrogen is not a common pollutant introduced into the atmosphere both due to natural and human activity?
1 \(\mathrm{N}_{2} \mathrm{O}_{5}\)
2 \(\mathrm{N}_{2} \mathrm{O}\)
3 \({\text{NO}}\)
4 \(\mathrm{NO}_{2}\)
Explanation:
The oxidised hydrocarbons and ozone in the presence of humidity cause photochemical smog. Hydrocarbons \(+\mathrm{O}_{2}, \mathrm{NO}_{2}, \mathrm{NO}, \mathrm{O}_{3} \longrightarrow\) Peroxides, formaldehyde, peroxyacetylnitrate (PAN), acrolein, etc. Hence chloroflurocarbons are not common component of photochemical smog.
NEET - 2018
CHXI14:ENVIRONMENTAL CHEMISTRY
318441
The pollution due to oxides of sulphur gets enhanced due to the presence of: (a) particulate matter (b) ozone (c) hydrocarbons (d) hydrogen peroxide Choose the most appropriate answer from the options given below:
1 (a), (b), (d) only
2 (b), (c), (d) only
3 (a), (c), (d) only
4 (a), (d) only
Explanation:
The presence of particulate matter in polluted air catalyses the oxidation of sulphur dioxide tosulphur trioxide. \({\text{2S}}{{\text{O}}_{\text{2}}}\left( {\text{g}} \right){\text{ + }}{{\text{O}}_{\text{2}}}\left( {\text{g}} \right) \to {\text{2S}}{{\text{O}}_{\text{3}}}\left( {\text{g}} \right)\) The reaction can also be promoted by ozone and hydrogen peroxide. \({\text{S}}{{\text{O}}_{\text{2}}}\left( {\text{g}} \right){\text{ + }}{{\text{O}}_{\text{3}}}\left( {\text{g}} \right) \to {\text{S}}{{\text{O}}_{\text{3}}}\left( {\text{g}} \right){\text{ + }}{{\text{O}}_{\text{2}}}\left( {\text{g}} \right)\) \({\text{S}}{{\text{O}}_{\text{2}}}\left( {\text{g}} \right){\text{ + }}{{\text{H}}_{\text{2}}}{{\text{O}}_{\text{2}}}{\text{(l)}} \to {{\text{H}}_{\text{2}}}{\text{S}}{{\text{O}}_{\text{4}}}{\text{(aq)}}\)
318438
The carbondioxide content in atmospheric air is about
1 \(3.34 \%\)
2 \(6.5 \%\)
3 \(0.034 \%\)
4 \(0.34 \%\)
Explanation:
Conceptual Questions
CHXI14:ENVIRONMENTAL CHEMISTRY
318439
Which of the following is present in highest concentration in exhaust emission?
1 \(\mathrm{CO}_{2}\)
2 Hydrocarbons
3 \(\mathrm{CO}\)
4 Oxides of nitrogen
Explanation:
\(\mathrm{CO}\) is present in highest concentration in exhaust emission.
CHXI14:ENVIRONMENTAL CHEMISTRY
318440
Which oxide of nitrogen is not a common pollutant introduced into the atmosphere both due to natural and human activity?
1 \(\mathrm{N}_{2} \mathrm{O}_{5}\)
2 \(\mathrm{N}_{2} \mathrm{O}\)
3 \({\text{NO}}\)
4 \(\mathrm{NO}_{2}\)
Explanation:
The oxidised hydrocarbons and ozone in the presence of humidity cause photochemical smog. Hydrocarbons \(+\mathrm{O}_{2}, \mathrm{NO}_{2}, \mathrm{NO}, \mathrm{O}_{3} \longrightarrow\) Peroxides, formaldehyde, peroxyacetylnitrate (PAN), acrolein, etc. Hence chloroflurocarbons are not common component of photochemical smog.
NEET - 2018
CHXI14:ENVIRONMENTAL CHEMISTRY
318441
The pollution due to oxides of sulphur gets enhanced due to the presence of: (a) particulate matter (b) ozone (c) hydrocarbons (d) hydrogen peroxide Choose the most appropriate answer from the options given below:
1 (a), (b), (d) only
2 (b), (c), (d) only
3 (a), (c), (d) only
4 (a), (d) only
Explanation:
The presence of particulate matter in polluted air catalyses the oxidation of sulphur dioxide tosulphur trioxide. \({\text{2S}}{{\text{O}}_{\text{2}}}\left( {\text{g}} \right){\text{ + }}{{\text{O}}_{\text{2}}}\left( {\text{g}} \right) \to {\text{2S}}{{\text{O}}_{\text{3}}}\left( {\text{g}} \right)\) The reaction can also be promoted by ozone and hydrogen peroxide. \({\text{S}}{{\text{O}}_{\text{2}}}\left( {\text{g}} \right){\text{ + }}{{\text{O}}_{\text{3}}}\left( {\text{g}} \right) \to {\text{S}}{{\text{O}}_{\text{3}}}\left( {\text{g}} \right){\text{ + }}{{\text{O}}_{\text{2}}}\left( {\text{g}} \right)\) \({\text{S}}{{\text{O}}_{\text{2}}}\left( {\text{g}} \right){\text{ + }}{{\text{H}}_{\text{2}}}{{\text{O}}_{\text{2}}}{\text{(l)}} \to {{\text{H}}_{\text{2}}}{\text{S}}{{\text{O}}_{\text{4}}}{\text{(aq)}}\)