iron , copper , nickel and cobalt 
1 - choose the odd one out 
2 - give reasons for your choice

Coper is odd one out. It is because iron, nickel and cobalt are magnetic substance where as copper is a non-magnetic substance.

  • 5
copper ,because others are magnetic while iron,nickel and cobalt are magnetic materials
  • 2
CoperCoper
  • 1
nickel
  • -1
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