Question

Which one of the following is not the property of mixtures

Answer 1

Explanation:

Characteristics of mixtures

The substances in a mixture can be separated using physical methods such as filtration, freezing, and distillation.

There is little or no energy change when a mixture forms.

Mixtures have variable compositions, while compounds have a fixed, definite formula.

Answer 2

In the preparation of mixture energy is neither given out nor is absorbed so heat is not given or taken in the preparation of mixture.

Explanation:

• A Mixture is two or more substances that are mixed together without participating in the chemical changes.

• It is a physical combination of two or more substances in which identities are retained and they are mixed with solutions, emulsions and colloids.
• Mixtures may be homogeneous or heterogenous

• Mixtures do not have sharp melting and boiling point.
• They can be separated from its component.
• The proportions of the components are variable.
• The components of a  mixture have their original properties.

Properties of Mixtures

Mixtures are made up of two or more substances that are not chemically combined with each other. The properties of mixtures are listed below.