Question

State True (or) False
Corrosion of motor cars is the major problem in the winter, when salt is spread on the road to melt ice and snow
A.True
B.False

Answer 1

Hint: We have to know that the process of formation of metal oxide on contact to moist air is called corrosion. Corrosion takes place in the presence of moisture. Corrosion means electrochemical oxidation of metal in chemical reactions in the presence of oxidants like oxygen or sulfates.

Complete step by step answer:
We must remember that corrosion is a natural process which transforms a refined metal into a stable chemical form like oxide, sulfide (or) hydroxide. It is the destruction of materials generally a metal by process of chemical and electrochemical reaction through their environment. Corrosion also takes place in materials like ceramics (or) polymers but instead of corrosion we use the term degradation for those materials.
We have to know that the atmospheric corrosion could happen when any surface of metal present in a vehicle comes in contact with air containing moisture. A thin film of moisture gets deposited under non zero humidity conditions which is sufficient to cause the decay of surfaces of steels. The thickness of the film would depend on factors like ambient temperature and pressure, relative humidity, and the presence of salts.
When two metals are made to come in contact under the surface of an electrolyte they create a short circuited cell. Corrosion is a major problem in winter when the salts are laid as chromium and iron are the two metals and sodium chloride plays the role of an electrolyte.

So, the statement corrosion of cars is one of the major problems in white, if salt is present in the road to melt ice and snow is true.

Note: We have to know that there are several treatments used to slow down the damage of corrosion to metallic objects that come in contact to salt water, acids, or other environments. Some of the methods to prevent corrosion are surface treatments, applied coatings, reactive coatings and anodization.