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प्रश्न
Give a reason why water is considered a universal solvent.
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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.
संबंधित प्रश्न
Define Solvent.
State two factors by which solubility of a solute in a solvent can be increased.
Fill in the blank.
A _______ is a uniform mixture of a solute and a solvent.
Name the following
The liquid or medium of dissolution which allows the solute to dissolve in it.
If ‘X’ g. of potassium nitrate is added to 100 g. of water at 60°C and the salt dissolves completely then :
(a) is ‘X’ g. the solubility of potassium nitrate at 60°C.
(b) is the solution formed – saturated or unsaturated
(c) if on addition ‘X’ + ‘Y’ g. of potassium nitrate to the same amount of water at the same temperature and the solute now just remains behind after stirring then –
(d) is the solution now – saturated or unsaturated
(e) is ‘X’ + ‘Y’ g. the solubility of potassium nitrate.
Define the term solute.
Define the term solution.
Solutions which contain three components are called a binary solution.
In a solution, the component which is present in a lesser amount is called the solvent.
Vinu dissolves 50 g of sugar in 250 ml of hot water, Sarath dissolves 50 g of the same sugar in 250 ml of cold water. Who will get a faster dissolution of sugar? and Why?
