Question

are all the compounds in the world very reffered as pure substances

Answer 1

Compounds are referred to as pure compounds.
Pure substances are formed chemically. For example, water is made up of two different elements, oxygen bonded with 2 hydrogen atoms.
Elements are called pure substances as they're made up of only one type of atom. Hydrogen gas is a pure substance made up of 2 Hydrogen atoms.

Answer 2

Yes, all the compounds in the world are reffered as pure because compounds come under pure substance .
Hope this helps u.
plz make me brainlyist. :)