Answer : In a mixture, the substances retain their individual chemical and physical properties.
Explanation :
As there are two types of changes takes place in the reaction which are chemical and physical change.
Chemical change : It is a change in which the changes takes place in the chemical composition and thus resulting in the formation of a new compound or substance. It is an irreversible reaction. In this change, the substance do not retain their individual properties.
Physical change : It is a change in which the shape and size of a substance changes. In this change, there is no changes takes place in the chemical composition of the substance and no new substance is formed. It is a reversible reaction. In this change, the substance retain their individual properties.
Mixture : It is defined as a substance that made up of two or more different substances which are mixed.
It refers to the physical combination of two or more substances in which their identities are retained and mixed in form of solution.
Hence, in a mixture, the substances retain their individual chemical and physical properties.