Which one is not a correct statement? (a) Primary pollutants...

Name: Problem 7, Chapter 19: Inorganic Chemistry for Jee mains and Advanced
Uploaded: 2021-08-16T03:17:29-08:00
Duration: 1 min 1 s
Channel: Narayan Hari
Description: Which one is not a correct statement? (a) Primary pollutants are those which are emitted directly from the source (b) Secondary pollutants are those which are formed in the atmosphere by chemical interactions among primary pollutants and atmospheric constituents (c) Acid-rain is a primary pollutant (d) Particulates refer to all atmospheric substances that are not gases

Which one is not a correct statement? (a) Primary pollutants are those which are emitted directly from the source (b) Secondary pollutants are those which are formed in the atmosphere by chemical interactions among primary pollutants and atmospheric constituents (c) Acid-rain is a primary pollutant (d) Particulates refer to all atmospheric substances that are not gases

Which one is not a correct statement?
(a) Primary pollutants are those which are emitted directly from the source
(b) Secondary pollutants are those which are formed in the atmosphere by chemical interactions among primary pollutants and atmospheric constituents
(c) Acid-rain is a primary pollutant
(d) Particulates refer to all atmospheric substances that are not gases

Key Concepts

Primary Pollutants

Primary pollutants are substances that are emitted directly into the atmosphere from a source, such as vehicles, industry, or natural processes. They are released in their harmful form and do not require any chemical transformation in the atmosphere to exhibit their negative environmental and health impacts.

Secondary Pollutants

Secondary pollutants are not directly emitted. Instead, they are formed in the atmosphere through chemical reactions involving primary pollutants and other atmospheric components, such as oxygen, water vapor, or sunlight. These reactions often lead to harmful by-products, including ozone, smog, and various acids in precipitation.

Acid Rain

Acid rain is a form of precipitation that contains elevated levels of acids, typically due to the atmospheric reaction of pollutants like sulfur dioxide and nitrogen oxides from primary emissions. It is not a direct emission but rather the consequence of chemical interactions in the atmosphere, which categorizes it as a secondary phenomenon rather than a primary pollutant.

Particulates

Particulates refer to tiny solid or liquid particles suspended in the air that are not gaseous. They can originate from both primary sources, like dust and smoke, or be formed secondarily through atmospheric reactions. Their size and composition influence their environmental and health effects, making them a critical subject of air quality studies.

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