Corrosion and its Prevention
Corrosion and its Prevention: Overview
This topic covers concepts, such as, Corrosion of Metals, Mechanism of Rusting of Iron, Electrical or Cathodic Protection & Effect of Presence of Electrolytes in Water on Corrosion etc.
Important Questions on Corrosion and its Prevention
The standard reduction potential for is . Calculate the reduction potential at for the above couple. .
Conductivity of a solution increases in presence of _____ (strong/weak) electrolytes.
Potassium nitrate will show more conductivity in water than sugar in water.
Which of the following electrolytes will show maximum conductivity when dissolved in water?
Why does the conductivity increases in presence of strong electrolytes and decreases in presence of weak electrolytes?
Explain the effects of electrolytes on conductivity of solution.
The process of zinc-plating on iron sheet is known as _____.(galvanisation/roasting)
The process of zinc-plating on iron sheet is known as
What is the chemical composition of rust?
During the process of corrosion of iron in atmosphere, a metal is reduced.
During the process of corrosion of iron in atmosphere, the product formed at cathode is:
The natural process that causes the transformation of pure metals to undesirable substances when they react with substances like water or air is called _____.
What is steric strain in organic chemistry?
The scratch test on any material gives us knowledge about
Which of the following metal is not used as a sacrificial anode?
What is the difference between Galvanising and sacrificial protection?
Which metal is often used as sacrificial metal?
When iron is kept in an anti-rusting solution, a protective layer is formed around it.
Why do levels of carbon dioxide in the atmosphere fall during the summer in the Northern Hemisphere?
Nitrogen dioxide dissociates into nitric oxide and ozone in the atmosphere.
