Question

The smog is formed by:
A) Smoke and fog
B) Smoke and bog
C) Smut and fog
D) Smut and bog

Answer 1

Hint: The answer to this question is based on the basic concept of chemistry that tell you about the chemistry in the nature and here in the question the name is given by the addition of two word and the first two letters of one chemical and the last two letters of other chemical. Think and answer.

Complete Solution :
In the classes of chemistry, we have studied the chapters that deal with the basic concepts about the natural formation of smoke, fog, smut and also about bog are known to us.
Now, let us see the definitions for each of these things so that we can be able to approach the correct answer.
- Smoke according to chemistry can be defined as the fine suspension of solid particles in a gas and it generally refers to the mixture of products given off by the incomplete combustion of an organic substance.
- Fog in chemistry means a cloud that touches ground, that is it is formed when condensation of water vapour or water in its gaseous form takes place.
- Bog is an area where there is wet muddy ground which is very soft to support any heavy body.
- Smut is the small flake of soot or may be other dirt which is left by one which is usually the fungus.
Thus, based on these facts we can eliminate smut and bog because they are formed in the ground.
The other two that is smoke and fog are in the atmosphere and formation of smog takes place when these two react with each other.
So, the correct answer is “Option A”.

Note: Smog is the fog or haze which is intensified by smoke or other atmospheric pollutants and do not confuse this with photochemical smog, because it is the smog formed when ultraviolet rays of sun react with nitrogen oxides in the atmosphere.