Question

Sodium chloride is a mixture of sodium and chlorine.

• A. True
• B. False

Answer 1

The correct option is B False

Compound: A compound is a pure substance in which elements combine chemically in a fixed composition to give a compound.

• They can be broken down into elements that make up the compound by using chemical or electrochemical methods.
• The properties of the compound are entirely different from the elements from which it is formed.
• Example: Water$\left({\mathrm{H}}_2\mathrm{O}\right)$, Common salt i.e.; Sodium chloride $\left(\mathrm{NaCl}\right)$

Mixture: When two or more substances (elements or compounds or an element and compound) are mixed in any proportion.

• The components are not combined chemically.
• The components of a mixture can be separated by physical methods of separation.
• Example: A mixture of Sand and Iron $\left(\mathrm{Fe}\right)$ can be separated by the use of a magnet (physical process) where Iron gets attracted to the magnet leaving behind the sand.

Sodium chloride $\left(\mathrm{NaCl}\right)$ is a compound rather than a mixture because in sodium chloride:-

• Sodium $\left(\mathrm{Na}\right)$ and Chlorine $\left(\mathrm{Cl}\right)$ are combined chemically in a fixed ratio.
• The properties of sodium chloride are different from the constituents i.e.; sodium and chlorine.

Hence, the given statement is false.