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प्रश्न
What is the advantage of a detergent over soap?
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उत्तर
Detergents are more soluble in water than soap and are unaffected by the hardness of water as their calcium salts are soluble in water.
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संबंधित प्रश्न
Why is sea water salty ?
Explain the terms:
Solvent
Explain why:
The solute cannot be separated from a solution by filtration.
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
Give a reason why water is called a ‘universal solvent’ but, an alkali is not.
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.
State why ‘Water is considered a universal solvent’. Give the reason for the same.
Aquatic plants make use of dissolved ______ for photosynthesis.
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.
