Ans: Smoke is an aerosol.
An aerosol is the collection of tiny solid particles that are suspended in a gas. It is the colloidal suspension of the particles that are dispersed in the air or gas. For smoke, the small particles and the droplets are released into the air. These particles do not settle down, but remain suspended in the air. The component of smoke depends on the material that is being burned and also on the combustion of combustion. The particles suspended in the air, will determine the colour, opacity and also the visibility of the smoke.
Smoke has both environmental and health related issues, because of the pollutants and particulate matters
Some reactions of $NO _2$ relevant to photochemical smog formation are
Identify $A , B , X$ and $Y$
The photochemical smog does not generally contain :
There is a number of factors that contribute to the pollution of the environment. Some of the major causes of atmospheric pollution are given below -