10% oleum comprises of 10% free_________________? — Answer & Explanation | PrepBeePakistan

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HomeMCQsChemical Engineering

MEDIUMENGLISHChemical Engineering

10% oleum comprises of 10% free_________________?

Correct answer: C

Explanation

Oleum is a solution of sulfur trioxide (SO3) dissolved in sulfur trioxide-free sulfuric acid. Therefore, 10% oleum contains 10% free SO3.

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