An iron nail is placed in a beaker of salty water. A piece of metal wire is wound

K

Katy Powe

New member
round the middle of the nail? An iron nail is placed in a beaker of salty water. A piece of metal wire is wound round the middle of the nail so that there is electrical contact with the nail. The iron nail will corrode most rapidly when the wire is made of:


a) copper
b)magnesium
c)iron
d) zinc
 
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