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what of the following is a major component of photochemical smog?

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What Of The Following Is A Major Component Of Photochemical Smog??

The major undesirable components of photochemical smog are nitrogen dioxide (NO2), ozone (O3), PAN (peroxyacetylnitrate), and chemical compounds that contain the –CHO group (aldehydes).The major undesirable components of photochemical smog are nitrogen dioxide (NO2), ozone (O3), PAN (peroxyacetylnitrate

peroxyacetylnitrate
Peroxyacetyl nitrate, or PAN, is an oxidant that is more stable than ozone. Hence, it is more capable of long-range transport than ozone. It serves as a carrier for oxides of nitrogen (NOx) into rural regions and causes ozone formation in the global troposphere.

What are the 3 major ingredients of photochemical smog?

The formation of photochemical smog involves three primary ingredients: nitrogen oxides, hydrocarbons and sunlight.

What is one of the major components of photochemical smog quizlet?

nitrogen oxide (NO) and nitrogen dioxide (NO2) collectively. These gases play a role in photochemical smog. colorless and highly reactive gas; a major component of photochemical smog and also found in the stratosphere where it protects life by filtering out most harmful UV radiation from the sun.

Which is the major photochemical oxidant?

ozone
The most commonly known photochemical oxidants are ozone, hydrogen peroxides and peroxyacetyl nitrate (PAN). These are formed under the influence of sunlight by complex photochemical reactions. The concentrations of the photochemical oxidants depend on the primary pollutants and the sunlight.

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Is CFC a component of photochemical smog?

Some of the common nitrogenous compounds are NOX, PAN of which PAN is peroxyacetyl nitrate which is a component of the photochemical smog. But the CFC or chlorofluorocarbon is not a component of the smog as it takes part in the depletion of the ozone layer.

What is photochemical smog How does it form what is the main component of photochemical smog?

Photochemical smog is a mixture of pollutants that are formed when nitrogen oxides and volatile organic compounds (VOCs) react to sunlight, creating a brown haze above cities. It tends to occur more often in summer, because that is when we have the most sunlight.

Which criteria pollutant is the biggest part of photochemical smog?

Ozone (O3)

Ozone at ground level – not to be confused with the ozone layer in the upper atmosphere – is one of the major constituents of photochemical smog.

What causes smog quizlet?

What causes smog? Smog is mostly caused by action of sunlight on a mixture of hydrocarbons & oxides of Nitrogen.

What is photochemical pollution?

Photochemical air pollution is pollution caused by the reaction of unsaturated and saturated hydrocarbons, aromatics and aldehydes (emitted owing to the incomplete combustion of fuels) with light. It causes eye irritation.

Which of following is NOT component of photochemical smog?

Among the given chlorofluorocarbons are the compounds that are responsible for ozone depletion which degrades ozone into molecular oxygen. It is not a component of photochemical smog.

Is unsaturated hydrocarbon a component of photochemical smog?

\[N{O_2}\] and unsaturated hydrocarbons are the primary constituents of photochemical smog. These primary constituents are introduced into the atmosphere via vehicular emissions and industrial processes.

Which of the following is a secondary pollutant and major component of photochemical smog?

Photochemical smog is made up of various secondary pollutants like ozone, peroxyacyl nitrates (PANs), and nitric acid (seen in Figure 2). Different types of secondary pollutants include: Ozone (O3) Sulfuric acid and nitric acid (component of acid rain)

What are the major components of smog and how does it form?

Smog, formed mainly above urban centres, is composed mainly of tropospheric ozone (O3); primary particulate matter such as pollen and dust; and secondary particulate matter such as sulphur oxides, volatile organic compounds, nitrogen oxides (NOx) and ammonia gas.

Which pollutant is the biggest part of photochemical smog and is found naturally in the stratosphere but considered a pollutant in the troposphere?

Learn more about stratospheric, or “good” ozone. Ozone at ground level is a harmful air pollutant, because of its effects on people and the environment, and it is the main ingredient in “smog.” Learn more about air emission sources.

Which of the following air pollutant is responsible for photochemical smog?

Thus photochemical smog is mainly composed of oxides of nitrogen, volatile organic compounds (primary pollutants), Carbon monoxide, and peroxyacetyl nitrate (PAN) (secondary pollutants). Carbon monoxide accelerates the reaction as measured by nitric oxide oxidation or ozone formation.

What causes photochemical smog?

Photochemical smog is produced when sunlight reacts with nitrogen oxides and at least one volatile organic compound (VOC) in the atmosphere. Nitrogen oxides come from car exhaust, coal power plants, and factory emissions.

What is photochemical smog and where is it usually found?

Photochemical smog is a type of smog produced when ultraviolet light from the sun reacts with nitrogen oxides in the atmosphere. … Cities that experience this smog daily include Los Angeles, Sydney, Mexico City, Beijing, and many more.

What contributes to both photochemical smog and acid precipitation?

Smog and acid rain are produced through similar sources, primarily vehicle and industry emissions. Though both result from human-caused air pollutants, there are chemical distinctions between the two.

What is smog quizlet?

-Smog: a poisonous mixture of smoke, aire, and other pollutants. -need: emissions, warmth/sunlight, and no air movement.

Is formaldehyde a component of photochemical smog?

The common components of photochemical smog are ozone, nitric oxide, acrolein, formaldehyde and peroxyacetyl nitrate (PAN).

What is the main oxidant in photochemical smog?

ozone
The photochemical oxidants are secondary air pollutants formed by the action of sunlight on nitrogen oxides and reactive hydrocarbons, their precursors. The most important phytotoxic components produced by these atmospheric photochemical reactions are ozone and peroxyacetyl nitrate.

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Which one of the following is not a component of smog?

Classic smog results from large amounts of coal burning in an area and is caused by a mixture of smoke and sulfur dioxide. Smog does not contain Chlorine oxide.

What are the components of classical smog?

classical smog – This is the typical form of smog found in areas which have a humid climate. It is a mixture of smoke, fog and sulphur dioxide.

Which of the following causes the photochemical smog Mcq?

Solution(By Examveda Team)

O3, PAN and NO2 cause photochemical smog.

Which of the following is an example of photochemical pollutant?

Air pollution containing ozone and other reactive chemical compounds formed by the action of sunlight on nitrogen oxides and hydrocarbons, especially those in automobile exhaust.

What are the secondary pollutants in photochemical smog?

An important secondary pollutant for photochemical smog is ozone, which is formed when hydrocarbons (HC) and nitrogen oxides (NOx) combine in the presence of sunlight; nitrogen dioxide (NO2), which is formed as nitric oxide (NO) combines with oxygen (O2) in the air.

What is the main component of smog quizlet?

What are the major components of smog? When and how does smog form in Los Angeles? nitrogen oxides (largely from automobile exhaust), volatile hydrocarbons, and oxygen in the atmosphere to produce ground-level ozone; this reaction requires solar energy.

What is the difference between smog and photochemical smog?

Sulfurous smog, also known as London smog, develops due to high concentration of sulfur oxides in the air. … Photochemical smog is produced when sunlight reacts with oxides of nitrogen and at least one volatile organic compound (VOC) in the atmosphere.

What is photochemical smog and its effects?

Photochemical smog is formed when sunlight interacts with certain chemicals in the atmosphere. Ozone is the main component in this type of air pollution. Ozone in the stratosphere protects us against harmful ultraviolet radiation, but on the ground, it is hazardous to human health.

Which one of the following are major anthropogenic sources of mercury pollution?

Approximately 70% of environmental mercury now comes from human activities including a variety of industrial proc- esses; coal burning, incineration or disposal of mercury-con- taining products, the use of mercury for chlorine production in the chlor-alkali industry, production of zinc, steel and other metals; cement …

The main component of photochemical smog is:

Photochemical Smog (Animation)

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