Question

Diffrences between pure and impure

Answer 1

Answer:

(a) Pure substances —

Pure substances have definite composition and definite physical and chemical properties.

They are all homogeneous i.e. their composition is uniform throughout the bulk.

Examples: Elements and compounds.

Impure substances —

Impure substances are made up of two or more pure substances mixed together in any proportion.

They may be homogeneous or hetergeneous i.e. their composition is not uniform throughout the bulk.

They are all mixtures.

Examples: air, sea water, petroleum, a solution of sugar in water are all impure substances.

Answer 2

Answer:

pure::.

1) the substance in which there is no any other material is called as pure substances

impure

the substance in which there is mixture of and additional things is called as impure substance