Sugar is soluble in alcohol while salt is not. Simply mix the two in alcohol and filter the solution to get the salt. Then evaporate the alcohol sugar mixture and you will be left with the sugar that's it..

Test to Distinguish Sodium Chloride from Sugar

In order to distinguish between sodium chloride (NaCl) and sugar, one can perform a simple solubility test. This test takes advantage of the different solubilities of these two substances in water.

Materials:
- Sodium chloride (table salt)
- Sugar (sucrose)
- Water
- Two separate test tubes
- Stirring rod

Procedure:
1. Label the two test tubes as "NaCl" and "Sugar" to keep track of the substances being tested.
2. Take a small amount of sodium chloride and add it to the test tube labeled "NaCl."
3. Similarly, take a small amount of sugar and add it to the test tube labeled "Sugar."
4. Add an equal volume of water to each test tube, ensuring that the substances are completely submerged.
5. Use a stirring rod to mix the contents of each test tube until the substances are fully dissolved.
6. Observe the appearance of the solutions in both test tubes.

Observations:
- Sodium Chloride Test Tube: Sodium chloride is highly soluble in water. Therefore, the solution in the NaCl test tube should be clear and transparent.
- Sugar Test Tube: Sugar, on the other hand, is also soluble in water, but to a lesser extent compared to sodium chloride. As a result, the solution in the sugar test tube may appear cloudy or have undissolved particles floating in it.

Interpretation:
Based on the observations, one can distinguish between sodium chloride and sugar:
- If the solution in the NaCl test tube is clear and transparent, it indicates the presence of sodium chloride.
- If the solution in the sugar test tube is cloudy or has undissolved particles, it suggests the presence of sugar.

Explanation:
This test works because sodium chloride is an ionic compound, composed of positively charged sodium ions (Na+) and negatively charged chloride ions (Cl-). These ions dissociate completely in water, resulting in a clear solution. Sugar, on the other hand, is a covalent compound held together by intermolecular forces. It dissolves in water but does not dissociate into ions, resulting in a less soluble solution that may appear cloudy.

In conclusion, the solubility test is a simple and effective way to distinguish sodium chloride from sugar based on their different behaviors when dissolved in water.