Question

all conductors of electricity are magnetic substance. comments on this statement giving reasons​

Answer 1

No , all the conductors are not made of magnetic material [ Ferromagnetic substances like iron, cobalt, Nickel]. some of the best conductors like Ag, Cu, Al are not ferromagnetic.

Hence all conductors are not magnetic materials.

But current carrying conductor produces magnetic field around them  which is used to produce strong electromagnets.