Advertisements
Advertisements
प्रश्न
What is soap? For what is it used?
उत्तर
Soap is chemically a sodium salt of stearic acid (an organic acid with the formula C17H35COOH) and has the formula C17H35COONa.
Soap is used for washing purposes.
APPEARS IN
संबंधित प्रश्न
Why is sea water salty ?
What do you mean by solubility of a solute in a solvent ?
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?
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.
Aquatic plants make use of dissolved ______ for photosynthesis.
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.
