Question

How will you test whether a given rod is made from the iron or copper

Answer 1

The simple test to See whether a rod is off iron or Copper, Bring a horseshoe Magnet near to it and if the rod gets atrracted to it, it means it,s of iron.

Thank you.

Answer 2

Take that given rod and keep it near magnet. If the rod attracts , It is Iron rod.
If it doesn't attracts it is copper rod..