Which of the following is a general method of preparing acids?
A. Direct combination of constituent elements B. Double decomposition involving a salt solution C. Reaction between an anhydride and water D. Reaction between a base and an amphoteric oxide E. Dissolution of hydroxides followed by neutralization
Correct Answer: C
Explanation
There are several methods of preparation of acids. These include the following: 1. By the reaction between an acidic oxide of a non-metal (acid anhydride) and water. SO2(g) + H2O(l) → H2SO3(aq) Trioxosulphate(IV) P4010(s) + 2H2O(l) → 4HPO3(aq) Trioxophosphate(V)
