Question

Which of the following is a property of a pure substance?

Olt consists of different types of compounds.
O It may have substances in different states of matter.
Olt is made up of a single element or type of compound.
Its components can be separated by employing physical methods.

Answer 1

See below.

Step-by-step explanation:

It is made up of a single element or compound.

An example is the metal copper or the compound sodium chloride.

Answer 2

Answer: Option (c) is the correct answer.

Step-by-step explanation:

A pure substance is defined as the substance that contains either same or different type of atoms which are chemically combined to each other in a fixed ratio by mass.

For example, both
`Cl_(2)` and
`CaSO_(4)` are pure substances.

A pure substance can only be separated by chemical means.

So, this shows that a pure substance can be made up of same elements or different type of elements that constitute a compound.

Thus, we can conclude that a property of a pure substance is that it is made up of a single element or type of compound.