Question

7. Name the following compounds and also name the elements present in each of them. (You can ignore the numbers when naming these compounds.)

iv. $\mathrm{KCl}$

Answer 1

Part 1: Definition of compound:

A compound is defined as a pure substance that is made up of two or more elements in a fixed ratio by mass.

Part 2: Name of $\mathrm{KCl}$:

• Elements combine with chlorine to form chlorides.
• The chemical name of $\mathrm{KCl}$ is Potassium chloride.
• The elements present in $\mathrm{KCl}$ are potassium $\left(\mathrm{K}\right)$ and chlorine $\left(\mathrm{Cl}\right)$.

Hence, the name of $\mathrm{KCl}$ is Potassium chloride.