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प्रश्न
Give a reason why water is called a ‘universal solvent’ but, an alkali is not.
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उत्तर
Water is a polar covalent compound. When it comes in contact with any substance it breaks the electrostatic forces holding the molecules of that substance. Thus, the molecules break loose from the substance and hence dissolve in water. Thus, water is called a universal solvent and an alkali is not.
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संबंधित प्रश्न
Give two example of Solvent other than water.
Discuss the importance of water as a solvent for our body .
Discuss the importance of water as a solvent for plants.
What do you mean by solubility of a solute in a solvent ?
'Water is the universal solvent'. Comment.
What are the observations and conclusions when tap water is boiled and evaporated in watch glass?
What is the importance of dissolved salts in water?
Explain why boiled or distilled water tastes flat.
Explain the term:
Solute
Explain the terms:
Solvent
State the term: (Do not give examples)
A solution where solvent is a liquid other than water.
Explain why:
The solute cannot be separated from a solution by filtration.
In which of the following substances will there be
Increase in mass
In which of the following substances will there be
No change in mass when they are exposed to air?
Sodium chloride
Iron
Conc. sulphuric acid
Table salt
Sodium carbonate crystals
What is the advantage of a detergent over soap?
Why does the hardness of water render it unfit for use in a boiler.
State why ‘Water is considered a universal solvent’. Give the reason for the same.
Give a reason for the following.
Water is a universal solvent.
