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प्रश्न
Give examples of efflorescence.
उत्तर
Blue vitriol [CuSO4.5H2O], Green vitriol [FeSO4.7H2O], Washing soda [Na2CO3.10H2O]
संबंधित प्रश्न
What do you understand by water of crystallization?
Define deliquescence.
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
\[\ce{NaHSO4 <=> H+ + Na+ + SO^2-_4}\]
Give reason for the following:
Anhydrous calcium chloride is used in a desiccator.
State whether a sample of the following would increase or decrease in a mass if exposed to air.
Solid CaCI2
State whether a sample of the following would increase or decrease in a mass if exposed to air.
Conc. Sulphuric acid
How can this impurity be removed?
Answer the question below:
What name is given to the water in the compound copper sulphate-5-water?
Select the correct answer from A, B, C, D and E.
A deliquescent compound.
Give a suitable chemical term for:
A definte number of water molecules bound to some salts.
