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प्रश्न
Give two examples of Drying agent.
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उत्तर
Concentrated sulphuric acid (H2SO4), phosphorus pentoxide (P2O5), quicklime (CaO)
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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 .
What do you mean by solubility of a solute in a solvent ?
'Water is the universal solvent'. Comment.
How is air dissolved in water different from ordinary air?
Explain the terms:
Solvent
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
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.
Give a reason why water is called a ‘universal solvent’ but, an alkali is not.
Select the correct answer of the following statement:
The medium of dissolution which allows the solute to dissolve in it.
State why ‘Water is considered a universal solvent’. Give the reason for the same.
Select the correct answer from the choice given in the options.
A deliquescent salt of a divalent metal _____.
Give a reason for the following.
Water is a universal solvent.
Take two pots with similar plants. Water one of the plants with tap water and the other with seawater. Record your findings and note the difference observed.
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.
