I. Tabulate a comparative chart to differentiate between mixtures and compounds. Differentiate them with reference to
a. separation of components,
Answers
Answer:
(a) Term - Elements - Pure substance made up of one kind of atoms only. e.g. Iron [Fe], Sulphur [S]
Compounds - Pure substance made up of two or more different elements, e.g. Iron sulphide [FeS]
Mixtures - Impure substance made up of two or more elements or compounds, e.g. Iron and sulphur mixture.
(b) Existence - Elements-Elements i.e. atoms are present on their own. e.g. Iron and sulphur exist on their own as elements iron and sulphur.
Compounds - Components in a compound present in a definite proportion. e.g. Iron and sulphur are chemically combined in a fixed ratio in iron sulphide.
Mixtures - Components in a mixture present in any proportion. e.g. Iron and sulphur are mixed in any ratio in the mixture of iron and sulphur.
(c) Properties - Elements - Elements have a definite set of properties. Elements classified into metal and non-metals each with its own properties. Compounds - Compounds have a definite set of properties. Elements of a compound do not retain their original properties.
Mixtures - Mixture not have a definite set of properties. Components of a mixture do retain their original properties.
(iv) Separation of compound-
Elements - Elements occur on their own or as compounds and can be separated by chemical and physical methods. Example : Iron, copper.
Compounds - Elements in a compound are chemically combined and can be separated by chemical methods only. Example : Iron Sulphide, copper oxide.
Mixtures - Components in a mixture can be separated by physical methods only. Example : Iron + sulphur
Answer:
difference between mixture and compound
