Question

Sodium chloride is contaminated with copper(I)oxide. Explain how pure sodium chloride can be obtained from the mixture​.

Answer 1

To obtain pure sodium chloride from a mixture contaminated with copper(I) oxide, you can use the filtration method by dissolving the mixture in water, filtering it to separate copper(I) oxide, and then evaporating the water to obtain pure sodium chloride.

Step-by-step explanation:

To obtain pure sodium chloride from the mixture contaminated with copper(I) oxide, you can use a method called filtration. Here's how you can do it:

1. Dissolve the mixture of sodium chloride and copper(I) oxide in water.
2. Filter the solution using filter paper and a filter funnel. The filter paper will retain the copper(I) oxide while allowing the sodium chloride solution to pass through.
3. Collect the filtrate, which contains the pure sodium chloride solution.
4. Evaporate the water from the sodium chloride solution to obtain solid, pure sodium chloride.

This method utilizes the difference in solubility between sodium chloride and copper(I) oxide in water, allowing us to separate the two substances.