Explanation:

In a mixture, constituents exhibit their own properties. This means that each individual substance or component in a mixture retains its original properties, even when it is mixed with other substances.

Definition of a mixture:

A mixture is a combination of two or more substances that are physically combined, but not chemically bonded. In other words, the substances in a mixture can be separated by physical means, such as filtration or evaporation.

Properties of substances:

Every substance has its own unique set of properties, which can include physical properties (such as color, odor, density, and melting point) and chemical properties (such as reactivity and flammability). These properties are inherent to the substance and do not change when it is mixed with other substances to form a mixture.

Behavior of constituents in a mixture:

When different substances are mixed together to form a mixture, they do not lose their individual properties. For example, if you mix salt and sugar together, each component will still retain its own taste, texture, and other characteristic properties. Similarly, if you mix sand and water, the sand will still be gritty and the water will still be liquid.

Separation of constituents:

Since the constituents in a mixture retain their own properties, it is possible to separate them using physical methods. For example, if you have a mixture of sand and water, you can separate them by filtration, where the sand particles are trapped by a filter while the water passes through. This is possible because the sand and water have different physical properties that allow them to be separated.

Conclusion:

In conclusion, the correct answer is option 'C' - the constituents in a mixture exhibit their own properties. This is because the substances in a mixture retain their individual characteristics and do not lose their properties when they are mixed together. This property retention allows for the separation of constituents in a mixture based on their unique properties.