JAMB Chemistry 2013 Objective — Question 21
Question 21 of 50 from the Joint Admissions and Matriculation Board (JAMB) Chemistry 2013 Objective paper, with the correct answer and a full explanation.
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An insoluble salt can be prepared by
- A. the action of dilute acid on an insoluble base
- B. the reaction of metals with an acid
- C. reaction of trioxocarbonate (IV) with an acid
- D. double decompositionCorrect
Explanation
The best way of preparing insoluble salts is double decomposition. For instance, silver chloride (AgCl) can be produced from the double decomposition reaction between AgNO3 and NaCl.
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