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प्रश्न
Give four substances which contain water of crystallization and write their common names.
उत्तर
|
Common name |
Chemical name |
Formula |
|
Washing soda |
Sodium carbonate decahydrate |
Na2CO3.10H2O |
|
Epsom salt |
Magnesium sulphate heptahydrate |
MgSO4.7H2O |
|
Potash alum |
Hydrated potassium aluminium sulphate |
K2SO4.Al(SO4)3.24H2O |
|
Gypsum |
Hydrated calcium sulphate |
CaSO4.2H2O |
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संबंधित प्रश्न
Distinguish between drying and dehydrating agent.
State whether a sample of the following would increase or decrease in a mass if exposed to air.
Solid Na2CO3 .10H2O
What happen to the crystals of washing soda when exposed to air? Name the phenomenon exhibited.
State your observation when the following is exposed to the atmosphere.
Washing soda crystals
Give examples of efflorescence.
Answer the question below:
What name is given to the water in the compound copper sulphate-5-water?
Answer the question below:
If copper sulphate-5-water is heated, anhydrous copper sulphate is formed. What is its colour?
Answer the question below:
By what means, other than heating, could you dehydrate copper sulphate-5-water and obtain anhydrous copper sulphate?
Answer the question below:
Name a deliquescent salt.
Name the salt which on hydrolysis forms neutral solution. Give a balanced equation for each reaction.
