Corrosion and Rancidity

Explain the following terms with one example each. (a) Corrosion (b) Rancidity

Distinguish between corrosion and passivity .

Define Corrosion. How can corrosion be prevented

Corrosion of statues and monuments occurs due to

STATEMENT 1 Corrosion of iron is essentially an electrochemical phenomenon STATEMENT 2 : Corrosion reaction at anode : 2Fe(s)rarr2Fe^(3+)+6e^(-) STATEMENT 3: Corrosion reaction at cathode : O_(2)(g)+4H^(+)(aq)+4e^(-)rarr2H_(2)O(l)

Calculate E_(cell)^(@) for the following reaction at 298 K: 2AI(s) + 3Cu^(2+)(0.01M) to 2A1^(3+)(0.01M) + 3Cu(s) "Given" : E_(cell) = 1.98V (b) Using the E^(@) values A and B, predict which is better for coating the surface of iron [E^(@)(Fe^(2+)//Fe) = -0.44V] to prevent corrosion and why? "Given" : E^(@)(A^(2+)//A) = 2.37V : E^(@)(B^(2+) //B) = 0.14V

Corrosion is basically

What is corrosion? Why aluminium sheets do not corrode easily? Write two necessary conditions for corrosion to take place.

Corrosion is essentially an electrochemical phenomenon. Explain the reactions occurring during corrosion of iron kept in an open atmosphere.

Define the following terms : Corrosion of metals