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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
Why is water called a universal solvent?
Define:
Solute
Fill in the blank.
A _______ is a uniform mixture of a solute and a solvent.
Define the term solution with reference to the addition of sodium chloride to water.
Draw a neat labelled diagram of the addition of copper sulphate to water. Label solute, solvent, and solution in the same.
From the following substances given below state which will form a solution in the same.
(a) sodium carbonate
(b) calcium carbonate
(c) charcoal powder
(d) sodium sulphate
(e) table salt
(f) powdered particles of lead from a lead pencil
(g) iron powder
(h) copper filings
(i) sand particles
(j) honey
State whether the following statement is true or false. If false write the correct statement.
Solubility of most solids – decreases with increase in temperature
State the characteristics of a true solution.
Differentiate between the following:
Solute and solvent – forming a solution.
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?
