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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
Give two examples of Drying agent.
Why is sea water salty ?
How is air dissolved in water different from ordinary air?
Explain the terms:
Solvent
Explain why:
The solute cannot be separated from a solution by filtration.
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 _____.
Paheli was feeling thirsty but there was only a pot of water at home which was muddy and unfit for drinking. How do you think Paheli would have made this water fit for drinking if the following materials were available to her.
| Alum | tub | muslin cloth | gas stove | thread | pan and lid |
