Question:
Which of the following is a secondary air pollutant?
Which of the following is a secondary air pollutant?
Show Hint
Examples:
\[
\boxed{
\begin{aligned}
\text{Primary pollutants} &: \text{CO, SO}_2,\ \text{NO},\ \text{Lead}
\text{Secondary pollutants} &: \text{O}_3,\ \text{PAN},\ \text{Photochemical smog}
\end{aligned}
}
\]
Updated On: Jul 18, 2026
- Carbon monoxide
- Ozone (tropospheric)
- Sulphur dioxide
- Lead
Show Solution
Verified By Collegedunia
The Correct Option is B
Solution and Explanation
Secondary pollutants are not emitted directly into the atmosphere.
They are formed by chemical reactions between primary pollutants in the presence of sunlight.
Tropospheric ozone is produced from reactions involving nitrogen oxides (NO\(_x\)) and volatile organic compounds (VOCs).
Hence,
\[
\boxed{\text{Ozone (tropospheric)}}
\]
is the correct answer.
Therefore,
\[
\boxed{(B)}
\]
Was this answer helpful?
0
0
Top TS PGECET Environmental Management Questions
- Which component of an ecosystem is responsible for the cycling of nutrients such as carbon, nitrogen and phosphorus?
- Energy flow is always unidirectional in an ecosystem because?
- Energy flow in an ecosystem is based on which laws?
- Photosynthesis converts solar energy into the chemical energy of a carbohydrate by?
- In a food chain, energy is transferred from one trophic level to another. What happens to the energy as it moves up the food chain?
View More Questions
Top TS PGECET Environmental pollution Questions
- Which of the following is an example of non-point source pollution?
- In which year was the Earth Summit (Rio Conference) held?
- The permissible noise level in residential areas during night is approximately
- Arrange the following devices in increasing order of particulate collection efficiency for fine particles: \[ \begin{aligned} A.&\ \text{Gravity settling chamber} B.&\ \text{Cyclone separator} C.&\ \text{Electrostatic precipitator} \end{aligned} \]
- Minamata disease is caused due to long-term exposure to
View More Questions
Top TS PGECET Questions
- If \( P = \begin{pmatrix} 1 & 1 & 1 \\ 0 & 1 & 2 \\ 0 & 0 & 1 \end{pmatrix} \) is the modal matrix of \( A = \begin{pmatrix} 1 & 1 & 0 \\ 0 & 2 & 2 \\ 0 & 0 & 3 \end{pmatrix} \) then the sum of all the elements of \( P^{-1}AP \) is
- If the system of equations \( kx + y + z = k - 1 \), \( x + ky + z = k - 1 \), and \( x + y + kz = k - 1 \) has infinite solutions, then \( k \) is
- The value of the integral \( \int_C (2xy - x^2) \, dx + (x^2 + y^2) \, dy \) where \( C \) is the boundary of the region enclosed by \( y = x^2 \) and \( y^2 = x \), described in the positive sense, is
- Let \( f(x) = \log x \). The number \( C \) strictly between \( e^2 \) and \( e^3 \) such that its reciprocal is equal to \( \frac{f(e^3) - f(e^2)}{e^3 - e^2} \) is
- The solution of the differential equation \( (D^2 + 2)y = x^2 \) is
View More Questions