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A compound that could be dried by using conc. tetraoxosulphate (VI) acid and not by...

Chemistry
WAEC 2023

A compound that could be dried by using conc. tetraoxosulphate (VI) acid and not by calcium oxide is likely to be

  • A. a deliquescent salt
  • B. a neutral salt
  • C. an alkaline gas
  • D. an acid anhydride
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Correct Answer: Option D
Explanation

The compound that could be dried by using conc. tetraoxosulphate (VI) acid and not calcium oxide is an acid anhydride.
Acid anhydrides are compounds that can react with water to form acids. When acid anhydrides are exposed to air, they will absorb water from the air and become hydrated. This can make them difficult to dry with calcium oxide, which is a base.


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Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
NECO June/July 2024 - Get offline past questions & answers - Download objective & theory, all in one app 48789
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NECO June/July 2024 - Get offline past questions & answers - Download objective & theory, all in one app 48789
Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
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