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Question
The following is a list of methods for the preparation of salts.
A – direct combination of two elements.
B – reaction of a dilute acid with a metal.
C – reaction of a dilute acid with an insoluble base.
D – titration of a dilute acid with a solution of soluble base.
E – reaction of two solutions of salts to form a precipitate.
Choose from the above list A to E, the best method of preparing the following salt by giving a suitable equation in the following case:
Copper sulphate.
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Solution
The best method of preparing copper sulphate is the method C – reaction of a dilute acid with an insoluble base.
\[\ce{CuO + H2SO4 -> CuSO4 + H2O}\]
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