State whether the following statements are true or false. Correct the false statements.

(a) Magnetic separation can be used to separate iron nails from a mixture of non-magnetic materials.

(b) Magnetism is a property of attracting non-magnetic materials to magnetic materials.

(c) Sedimentation can be done after the decantation process is complete.

(d) If mud particles have to be separated from water, sedimentation and decantation can be used.

(e) Supernatant settles at the bottom of the mixture in sedimentation.

(f) Filters used in air purifiers dispense air free from dirt and dust particles.

Magnetic separation is a process where magnetic materials like iron can be separated from non-magnetic materials using a magnet. In the context of iron filings and sulfur, a magnet can be used to separate the iron filings from the sulfur based on their magnetic properties.

Metals like iron exhibit magnetic properties which allow them to be separated from non-magnetic substances like sulfur using a magnet. This property enables the efficient separation of iron from mixtures containing non-magnetic components.

Filtration is another method used to separate mixtures, where solids are separated from fluids based on their interactions with a filter. This process is essential for achieving the separation of substances in various scenarios.

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