Prevention of Corrosion
Trending Questions
What are corrosion and its prevention?
Question 10
State two ways to prevent the rusting of iron.
Describe in brief an activity to investigate the conditions under which an article made of iron rusts. List any four methods used for the prevention of rusting of iron.
Why do we apply paint on iron articles?
What is anodizing done in case of?
Name the metal which is used for galvanising iron.
What is galvanized iron? How is galvanized iron protected from rust?
What is meant galvanisation? Why is it done?
Write any 5 prevention methods of rancidity and corrosion
Which of the following is a ferrous alloy?
Solder
Brass
Magnalium
Steel
Explain why, iron sheets are coated with zinc.
Corrosion of some metals is an advantage. Explain with an example.
A galvanised article doesn't rust even if the zinc coating breaks. Why?
In one method of rust prevention, the iron is not coated with anything. Which is this method?
Why do we apply oil on iron tools kept in storage
Why does a nail keep in preboiled water for two days not get rusted?
In case of Aluminium, corrosion is not proved to be wasteful. Comment.
List the factor affecting the rate of corrosion.
A student has been collecting silver coins and copper coins. One day she observed a black coating on silver coins and a green coating on copper coins. Which chemical phenomenon is responsible for these coatings? Write the names of black and green coatings.
is corrosion of metal an exothermic reaction or an endothermic reaction ??
- zinc
- carbon
- manganese
- Reactivity of metal
- Presence of air and moisture
- Presence of electrolytes
- Strains in metals
A protective coating of ____ is applied on iron to protect it from corrosion.
- zinc
- mercury
- bromine
- gallium
What is galvanisation ? How does it protect iron from rusting?
What is corrosion of metals?
- Lead
- Mercury
- Zinc
- Copper
