Question

Is $NaCl$ a mixture?

Answer 1

A mixture is a physical combination of two or more components, each of which retains its own identity and characteristics. The proportion of components of mixture is variable. The separation of components of a mixture is done easily.

Complete answer:
The solid sodium chloride is not a mixture. It's a completely natural material. It is not physically possible to divide it into its constituents, $N{a^ + }$ and $C{l^ - }$ .It would demand the use of energy, which is evidently not a physical means.
Because $NaCl$ dissolves entirely in water, aqueous sodium chloride is a homogenous mixture with only one visible phase. The $N{a^ + }$ and $C{l^ - }$ ions in solution are entirely separated from one another and form electrostatic interactions with hydrogen and oxygen atoms in water.
The ability to separate mixtures into their constituents is one of their characteristics. The identities of the various ingredients remain unaltered since each part of the mixture has not reacted with another part of the mixture.
Sodium chloride, also known as salt, is one of the most plentiful minerals on Earth and is a vital food source for many animals and plants. It can be found naturally in seawater and underground rock formations.
Hence, we can conclude that $NaCl$ is not a mixture.

Note:
A homogeneous mixture is one in which the chemical composition is consistent throughout. Because the dissolved salt is evenly distributed throughout the whole salt water sample, the salt water described above is homogenous. A heterogeneous mixture is one in which the composition varies from one part to the next. Vegetable soup is a heterogeneous mixture.