In an electrolytic set-up to protect iron from corrosion,...
In an electrolytic set-up to protect iron from corrosion, the iron is?
made cathode
made anode
used with a metal of lower electropositive potential
initially coated with tin
Correct answer is A
In cathodic protection,iron object is made cathode by connecting it with reactive elements like magnesium,zinc.
A sample of any of the following substances disappears after some time when exposed to air like...
What is the chemical symbol for Protactinium? ...
What volume of 1.5M solution of KOH would contain 0.045 moles ...
Chlorine displaces bromine from aqueous potassium bromide because ...