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Which of the following is a general method of preparing acids?

Chemistry
WAEC 1997
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
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Correct Answer: Option 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)
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Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
WAEC May/June 2024 - Practice for Objective & Theory - From 1988 till date, download app now - 99995
WAEC Past Questions, Objective & Theory, Study 100% offline, Download app now - 24709
WAEC offline past questions - with all answers and explanations in one app - Download for free
WAEC May/June 2024 - Practice for Objective & Theory - From 1988 till date, download app now - 99995
WAEC Past Questions, Objective & Theory, Study 100% offline, Download app now - 24709
WAEC offline past questions - with all answers and explanations in one app - Download for free
Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts