A magnet always aligns itself in the north-south direction when suspended freely.
Hence, the statement is true.
The property by which a freely suspended magnet always align itself in north south direction ,
A freely suspended magnet aligns itself in the north-south direction in a room and air is sucked from that room through the vacuum pump. So, now there is no air in the room but still, the magnet aligns itself in the north-south direction.