Advertisements
Advertisements
प्रश्न
Give reason for white power forms on the surface of washing soda crystals which are left exposed to the air.
Advertisements
उत्तर
Washing Soda is Efflorescent substance when exposed to air loses its moisture [water of crystallisation] partly and becomes powder which forms white powder on the crystals.
APPEARS IN
संबंधित प्रश्न
What is the effect of temperature on solubility of KNO3 and CaSO4 in water?
What is the effect of pressure on solubility of gases? Explain with an example.
Normally, solubility of crystalline solid increases with temperature. Does it increase uniformly in all cases? Name a substance whose solubility:
Increases slightly with temperature.
Select the correct gas from given options which match with the following description:
Turns moist red litmus paper blue.
Select the correct gas from given options which match with the following description:
Turns lead acetate paper from white to silvery black.
How can you increase the solubility of a given volume of gas in water?
Define solubility. Give the main steps with the calculations involved of the method to determine the solubility of a given salt ‘X’ in water.
Washing soda and iron [III] chloride are separately exposed to the atmosphere. State
- the observations seen
- the phenomenon which occurs
- the reason for the phenomenon occurring in each case.
Would a similar phenomenon occur in case of exposure of common salt. Explain giving reasons.
When pressure is increased at constant temperature the solubility of gases in liquid ______.
The aquatic animals live more in cold regions Why?
