1.

Explain the types of corrosion .

Answer»

Solution :Typesof Corrosion :
Dry Corrosion or Chemical Corrosion :
(i) Corrosiveaction in the absenceof moisture .
(ii) It is the PROCESS of a chemical attack on a metal by a corrosiveliquids or gasessuch as `O_2,N_2,SO_2,H_2S` etc .
(III) It occursat high temperature .
WET Corrosion or Electrochemical Corrosion :
(i) Corrosiveaction in the PRESENCEOF moisture .
(ii) It occursas a resultof electrochemicalreaction of metal with water or aqueoussolution of saltor acids or bases .


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