Question

choose the metal which is not attracted by magnet
A. Cobalt
B. Iron
C. Nickel
D. Silver

Answer 1

Hint:Silver is a non-ferrous metal that does not contain significant quantities of iron (ferrite). As a result, magnets would not attract silver or silver-based materials. A magnet, on the other hand, will not attract gold, silver, brass, or aluminium items, to name a few.

Complete answer:
A magnet would not attract silver. Iron, cobalt, nickel, and certain rare-earth metal alloys are among the metals that are magnetic. This is because metallic silver is diamagnetic rather than ferromagnetic. The reason it is diamagnetic is that, unlike iron or nickel, the particular arrangement of electrons on the shells and their spins does not have an energy minimum for the spins aligned in between the atoms on the wide regions.

Silver atoms don't see the benefit of long-range spin ordering, so they don't do it and don't intensify the external field. They do, however, react to the field by orienting themselves in the opposite direction of the field, weakening it slightly and causing a mild magnetic repulsion .

Hence, the correct option is D.

Note: Now comes the question of whether sterling silver adheres to a magnet. No, a sterling silver chain clasp's catch is made of steel, which will draw a magnet. Although silver is not magnetic in and of itself, a silver alloy containing nickel has a weak magnetic response. Nickel inclusion in jewellery alloys is prohibited by consumer protection regulations.Untrustworthy individuals manufacture steel chains and electroplate it with a thick layer of silver. You may use a magnet to find the steel core or check its precise gravity.