Question

14. What is corrosion? Explain its advantage and disadvantage.


answer it​

Answer 1

The natural process that causes the transformation of pure metals to undesirable substances when they react with substances like water or air is called corrosion.

Advantages:-

Following are the advantages of corrosion:-

1. Layer of protection: A layer of oxide is formed on the surface that is corrosion protects the inner metal from corrosion.
2. Sacrificial anodes such as zinc is used as a preventive measure to stop corrosion of other metals.
3. Galvanic corrosion: This kind of corrosion occurs when two different types of metals are in electrical contact in an electrolyte where the more active metal tends to corrode.

Disadvantages:-

Following are the disadvantages of corrosion:

1. Lose of metal from the surface
2. The physical appearance of a metal object changes.
3. The chemical properties of metal varies
4. Lose of the efficiency of metallic machines.
5. The life span of metallic objects decreases.

Answer 2

$\huge\colorbox{cyan}{Answer:-}$

$\huge\mathcal\orange{Corrosion !}$

$\huge\mathfrak\pink{==>}$The natural process that causes the transformation of pure metals to undesirable substances when they react with substances like water or air is called corrosion.

$\huge\mathfrak\pink{==>}$Corrosion is defined as the chemical or electrochemical reaction between a material, usually a metal or alloy, and its environment that produces a deterioration of the material and its properties.

$\huge\colorbox{cyan}{Explanation:-}$

$\huge\large\green{\sf{Advantage}}$

Following are the advantages of corrosion:

i) Layer of protection: A layer of oxide is formed on the surface that is corrosion protects the inner metal from corrosion

ii) Sacrificial anodes such as zinc is used as a preventive measure to stop corrosion of other metals

iii) Galvanic corrosion: This kind of corrosion occurs when two different types of metals are in electrical contact in an electrolyte where the more active metal tends to corrode.

$\huge\large\green{\sf{Disadvantage}}$

Following are the disadvantages of corrosion:$\huge\colorbox{cyan}{Answer:-}$

i)Lose of metal from the surface

ii) The physical appearance of a metal object changes

iii)The chemical properties of metal varies

iv)Lose of the efficiency of metallic machines

v) The life span of metallic objects decreases

$\huge\colorbox{cyan}{Thank you:-}$