Which of the following statements about mixtures is true?

Question

a) Mixtures always contain two elements that are chemically bonded.
b) The properties of a mixture are always different from its components.
c) Mixtures can be separated by physical means.
d) All mixtures have a fixed composition.

Answer 1

The true statement about mixtures is:

c) Mixtures can be separated by physical means.

Here's a brief explanation of why the other statements are false:

a) Mixtures can contain two or more substances (elements, compounds, or both) that are not chemically bonded.

b) The properties of a mixture can be similar to, or a combination of, the properties of its components, rather than always being different.

d) Mixtures do not have a fixed composition; the ratios of the components can vary.

Therefore, option c is the correct answer.