Advertisements
Advertisements
Question
What are the observations and conclusions when tap water is boiled and evaporated in watch glass?
Advertisements
Solution
When tap water is boiled and evaporated:
Observations:
- A number of concentric rings of solid matter are seen on the watch glass after evaporation of tap water.
Conclusion:
- Tap water contains dissolved salts, minerals and impurities.
APPEARS IN
RELATED QUESTIONS
How do the solubility of a solid and a gas affected by Increase in temperature.
Discuss the importance of water as a solvent for plants.
What is the importance of dissolved salts in water?
Explain why:
Lakes and rivers do not suddenly freeze in the winters.
Explain why:
The solute cannot be separated from a solution by filtration.
In which of the following substances will there be
Increase in mass
What is the advantage of a detergent over soap?
Name the gas that:
Does not affect acidified K2Cr2O7 paper but turns lime water milky.
Give a reason for the following.
Water is a universal solvent.
What insoluble substance? Give examples.
