Answer
414.6k+ views
Hint:A substance or energy introduced into the environment that has undesired effects, or adversely affects the usefulness of a resource is known as a pollutant.
Complete Answer:
We can start with understanding the concept of secondary pollutants-
The pollutants which form in the atmosphere are called Secondary pollutants. Secondary pollutants do not emit directly from a source like vehicles or power plants. It forms as a result of the pollutants the sources emit and reacts with the molecules in the atmosphere. Pollutants which are emitted into the environment directly from the main source which are known as the primary pollutants.
Let's talk about all the choices in the question individually-
1) $CO_2$ differs from secondary pollutants because secondary pollutants must form in the atmosphere, whereas primary pollutants do not. Types of primary pollutants include: Nitrogen oxides (NOx) Carbon monoxide (CO).
2) Peroxyacetyl nitrate (PAN) and ozone are the two important secondary photochemical air pollutants found in the urban atmosphere.
3) PANs are secondary pollutants, which means they are not directly emitted as exhaust from power plants or internal combustion engines, but they are formed from other pollutants by chemical reactions in the atmosphere.
4) Aerosol pollutants are formed within the atmosphere as a result of gas-phase reactions which are followed by condensation of the products, or by reactions that take place in the existing atmospheric aerosol phase.
Therefore, the correct answer is option C (PAN).
Note:Secondary pollutants can be more harmful compared to primary pollutants and cause severe human health issues.Smog is an example of a secondary pollutant.
Complete Answer:
We can start with understanding the concept of secondary pollutants-
The pollutants which form in the atmosphere are called Secondary pollutants. Secondary pollutants do not emit directly from a source like vehicles or power plants. It forms as a result of the pollutants the sources emit and reacts with the molecules in the atmosphere. Pollutants which are emitted into the environment directly from the main source which are known as the primary pollutants.
Let's talk about all the choices in the question individually-
1) $CO_2$ differs from secondary pollutants because secondary pollutants must form in the atmosphere, whereas primary pollutants do not. Types of primary pollutants include: Nitrogen oxides (NOx) Carbon monoxide (CO).
2) Peroxyacetyl nitrate (PAN) and ozone are the two important secondary photochemical air pollutants found in the urban atmosphere.
3) PANs are secondary pollutants, which means they are not directly emitted as exhaust from power plants or internal combustion engines, but they are formed from other pollutants by chemical reactions in the atmosphere.
4) Aerosol pollutants are formed within the atmosphere as a result of gas-phase reactions which are followed by condensation of the products, or by reactions that take place in the existing atmospheric aerosol phase.
Therefore, the correct answer is option C (PAN).
Note:Secondary pollutants can be more harmful compared to primary pollutants and cause severe human health issues.Smog is an example of a secondary pollutant.
Recently Updated Pages
How many sigma and pi bonds are present in HCequiv class 11 chemistry CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Why Are Noble Gases NonReactive class 11 chemistry CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Let X and Y be the sets of all positive divisors of class 11 maths CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Let x and y be 2 real numbers which satisfy the equations class 11 maths CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Let x 4log 2sqrt 9k 1 + 7 and y dfrac132log 2sqrt5 class 11 maths CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Let x22ax+b20 and x22bx+a20 be two equations Then the class 11 maths CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Trending doubts
Fill the blanks with the suitable prepositions 1 The class 9 english CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
At which age domestication of animals started A Neolithic class 11 social science CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Which are the Top 10 Largest Countries of the World?
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Give 10 examples for herbs , shrubs , climbers , creepers
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Difference between Prokaryotic cell and Eukaryotic class 11 biology CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Difference Between Plant Cell and Animal Cell
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Write a letter to the principal requesting him to grant class 10 english CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Change the following sentences into negative and interrogative class 10 english CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Fill in the blanks A 1 lakh ten thousand B 1 million class 9 maths CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)