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Pollutants released from iron and steel ...

Pollutants released from iron and steel industry are

A

`CO_2,NO_2,H_S`

B

`CO,CO_2,SO_2`

C

`CO_2,SO_3,NO_2`

D

`CO_2,NO,SO_3`

Text Solution

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The correct Answer is:
### Step-by-Step Solution: 1. **Identify the Industry**: The question pertains to the pollutants released from the iron and steel industry. 2. **Understand the Fuels Used**: The primary fuels used in the iron and steel industry are fossil fuels, mainly coke and coal. In some instances, petrol and diesel may also be used. 3. **Determine the Pollutants**: When these fuels are burned, they release various pollutants into the atmosphere. The main pollutants from the combustion of these fuels include: - Carbon Monoxide (CO) - Carbon Dioxide (CO2) - Sulfur Dioxide (SO2) - Nitrogen Dioxide (NO2) 4. **Analyze the Pollutants**: - **Carbon Monoxide (CO)**: A toxic gas produced from incomplete combustion of carbon-containing fuels. - **Carbon Dioxide (CO2)**: A greenhouse gas produced from complete combustion of fossil fuels. - **Sulfur Dioxide (SO2)**: Produced from the combustion of sulfur-containing fuels, such as coal. - **Nitrogen Dioxide (NO2)**: Produced from combustion processes, particularly at high temperatures. 5. **Eliminate Incorrect Options**: Based on the analysis, we can eliminate options that do not include the correct pollutants: - Option 1 does not include any of the relevant pollutants. - Option 3 includes SO3, which is not typically released directly from the iron and steel industry. - Option 4 includes Nitrogen Monoxide (NO), which is not the primary pollutant of concern. 6. **Select the Correct Option**: The correct pollutants released from the iron and steel industry are CO, CO2, and SO2. Therefore, the correct answer is option number 2. ### Final Answer: The pollutants released from the iron and steel industry are Carbon Monoxide (CO), Carbon Dioxide (CO2), and Sulfur Dioxide (SO2). ---
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