An iron bar magneti is heated to `1000^@C` and then cooled in a magnetic field free space. Will it retain magnetism?

An iron bar magnet is heated to 1000^@C and then cooled in a magnetic field free space. Will it retain its magnetism?

An iron bar is heated to 1000^@C and then cooled in a magnetic field free space. Will it retain magnetism?

An iron bar magnet is heated to 1000^@C and then cooled. Will it retain its magnetism?

A sample of magnetised iron is heated to about 900^@C and then cooled down in a region free of magnetic field. Will it retain its magnetism?

Magnetic keepers help to retain magnetism.