Advertisements
Advertisements
प्रश्न
Give a reason why water is called a ‘universal solvent’ but, an alkali is not.
Advertisements
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.
APPEARS IN
संबंधित प्रश्न
How do the solubility of a solid and a gas affected by Increase in temperature.
Give two example of Solvent other than water.
Give reason for Table salt becomes moist during rainy season.
Discuss the importance of water as a solvent for plants.
'Water is the universal solvent'. Comment.
What are the observations and conclusions when tap water is boiled and evaporated in watch glass?
Explain why boiled or distilled water tastes flat.
State the term: (Do not give examples)
A solution where solvent is a liquid other than water.
In which of the following substances will there be
Increase in mass
What is soap? For what is it used?
Name the gas that:
Does not affect acidified K2Cr2O7 paper but turns lime water milky.
Give a reason why boiled water tastes flat.
Select the correct answer of the following statement:
The medium of dissolution which allows the solute to dissolve in it.
Explain the importance of dissolved salts in water.
Sheela, Saima and Ravi have to dissolve maximum amount of sugar in the same amount of milk so as to win in a game. Ravi took hot boiling milk while Saima took ice cold milk. Sheela managed to get milk at room temperature. Whom do you think would win the game and why?
State whether the following statement is true or false.
Water can be separated from salt by evaporation.
