Question

How can you say sugar is a pure substance?

Answer 1

1. Pure substance: The substance which is made up of only one kind of atom or one kind of molecule is known as a pure substance.
2. The law of definite proportions states that the individual elements that constitute a chemical compound are always present in a fixed ratio.
3. The molecular formula of Sugar is${\mathrm{C}}_{12}{\mathrm{H}}_{22}{\mathrm{O}}_{11}$.
4. Sugar is a compound comprising Carbon$\left(\mathrm{C}\right)$, Hydrogen$\left(\mathrm{H}\right)$, and Oxygen$\left(\mathrm{O}\right)$.
5. Compound: A compound is also a pure substance that is made up of two or more elements chemically combined in a fixed proportion by mass.
6. Mixture: The substance having two or more elements or compounds that combine physically and not chemically are called mixtures.
7. As a result, sugar can be considered a pure substance and not a mixture.