Question

Why is the mixture of salt and chalk powder is considered as heterogenous mixture though they cannot be seen separately?​

Answer 1

When this mixture is heated, Camphor shall sublime.

We can separate the mixture of common salt and chalk powder by putting the mixture in water. As we know that common salt is a homogenous mixture, so it will dissolve with the water and chalk powder is heterogenous so it could be separated by the filter paper

Answer 2

Answer:

A homogeneous mixture is one in which all of its constituent elements are in the same phase, as opposed to a heterogeneous mixture, which has constituent parts in various phases.

Explanation:

By putting the mixture of table salt and chalk powder in water, we can separate the two substances.

Due to the homogeneity of common salt, which will dissolve uniformly in water, and the heterogeneity of chalk powder, which may be separated using the filtration process and filter paper.

Hence, the mixture of salt and chalk powder is considered a heterogeneous mixture though they cannot be seen separately because salt can be dissolved in water but chalk powder cannot be dissolved.

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