I'm not sure what you mean, but a substance's magnetism (in chemistry) is usually defined as paramagnetic or diamagetic.
Magnetic substances are those that are attracted to a magnet while non-magnetic substances are not attracted to a magnet.
Oil is not magnetic, but magnetic substances can be made from it.
Technically all substances are magnetic in some way: it's either ferromagnetic (what most people would consider "magnetic"), paramagnetic (weakly attracted to a magnetic field), or diamagnetic (weakly repelled by a magnetic field). Not many substances are "magnetic" in the usual lay meaning of the word, though.
Paramagnetic substances are attracted to a magnetic field, while diamagnetic substances are repelled by a magnetic field. This difference is due to the presence of unpaired electrons in paramagnetic substances, which align with the magnetic field, whereas diamagnetic substances have all paired electrons that create a weak opposing magnetic field.
No
Either one or both of the substances are not magnetic.
Magnetic substances are substances containing aligned dipoles. Dipoles are spinning electrons. In order for something to be magnetic, its dipoles must be aligned with each other, so that they face the same direction. The direction they face create a North end, while the opposite end creates a South end.Some substances, known as ferromagnetic substances, have permanently aligned dipoles. Other substances, such as paramagnetic and dimagnetic substances, require an external magnetic field to align, or 'induce' the dipoles of the substance.To conclude, magnetic substances contain dipoles which are permanently aligned, or can be aligned through the force of external magnetic fields.Diamagnetic Substances are those Substances there is no resultant field as the magnetic field produce by both the spin and orbital motions of the electrons might add up to zero.
A magnet can be used to separate magnetic materials from other substances by attracting the magnetic material while leaving non-magnetic materials behind. This process is known as magnetic separation and is commonly used in recycling and mining industries.
In non-magnetic materials,the magnetic moments of individual atoms are randomly arranged giving net zero magnetic moment such that these materials are not affected when an external magnetiv field is applied
Paramagnetic substances are those that are weakly attracted to a magnetic field, such as oxygen and aluminum. Diamagnetic substances, on the other hand, are weakly repelled by a magnetic field, like copper and bismuth. The key difference between them lies in their response to magnetic fields: paramagnetic substances are attracted, while diamagnetic substances are repelled.
Usually not, but it depends on the types of materials in it (if they are magnetic then it will be).
A magnetic stirrer uses a rotating magnetic field to spin a magnetic stir bar placed in a container of liquid. The spinning stir bar creates turbulence in the liquid, causing the substances to mix together evenly.