Answer: Option (d) is the correct answer.
Explanation:
A substance which contains two or more different number of substances that are physically mixed together is known as a mixture.
For example, a mixture of air which contains oxygen, nitrogen and other gases.
Components of a mixture will always combine physically with each other.
A compound is defined as the substance in which different elements are chemically combined together in a fixed ratio by mass.
For example, NaCl is a compound and elements are present in 1:1 ratio.
A compound can be divided into its constituent or simpler substances.
Thus, we can conclude that difference between a compound and a mixture is that components of a mixture are not chemically bonded together.
