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Question
Answer the question below:
By what means, other than heating, could you dehydrate copper sulphate-5-water and obtain anhydrous copper sulphate?
Solution
By treating with concentrated H2SO4. It absorbs water of crystallisation from hydrated salt.
RELATED QUESTIONS
From the list of the following salts choose the salt that most appropriately fits the description is given in the following:
[AgCl, MgCl2, NaHSO4, PbCO3, ZnCO3, KNO3, Ca(NO3)2]
A deliquescent salt
Define deliquescence.
Distinguish between drying and dehydrating agent.
Give reason for the following:
Sodium hydrogen sulphate is not an acid but it dissolves in water to give hydrogen ions, according to the equation
\[\ce{NaHSO4 <=> H+ + Na+ + SO^2-_4}\]
State whether a sample of the following would increase or decrease in a mass if exposed to air.
Conc. Sulphuric acid
List the properties of salts.
Answer the question below:
Name a deliquescent salt.
State your observation when the following is exposed to the atmosphere.
Iron (III) chloride salts
Name the salt which on hydrolysis forms neutral solution. Give a balanced equation for each reaction.
Select the correct answer from A, B, C, D and E.
A deliquescent compound.
