Which of the following is an example of an insoluble material in water...
Sand does not dissolve in water, unlike sugar and salt. It remains visible even after stirring.
Which of the following is an example of an insoluble material in water...
Understanding Insoluble Materials
Insoluble materials are substances that do not dissolve in water. Among the options provided, sand is the only material that is considered insoluble.
Why is Sand Insoluble in Water?
- Particle Size: Sand consists of larger particles compared to sugar and salt. These larger particles do not interact effectively with water molecules.
- Lack of Chemical Interaction: Sand is primarily composed of silicon dioxide (SiO2). It does not form bonds with water molecules, which is necessary for dissolution.
Comparison with Other Options
- Sugar:
- Solubility: Sugar dissolves readily in water due to its molecular structure, which allows it to interact with water molecules effectively.
- Salt:
- Solubility: Similar to sugar, salt (sodium chloride) dissolves in water as the ionic bonds in salt break apart in the presence of water, allowing it to disperse.
- Lemon Juice:
- Solubility: Lemon juice is a liquid solution containing various acids and sugars, which are soluble in water.
Conclusion
In summary, among the given options, sand is the only substance that does not dissolve in water, making it the correct answer. Understanding the properties of materials based on their interaction with water is crucial in science, especially in chemistry and environmental studies.