When Sulfur Trioxide Dissolves in Water, Sulfuric Acid Is Produced

question 222

Multiple Choice

When sulfur trioxide dissolves in water, sulfuric acid is produced.An intermediate in the reaction is H₂O-SO₃.In the reaction of the intermediate to produce sulfuric acid,

• A) water acts both as an acid and a base.
• B) water acts as a proton donor only.
• C) water acts as a proton acceptor only.
• D) the intermediate undergoes an intramolecular rearrangement to form the product.

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Definitions:

Waviness

A form of surface irregularity characterized by wave-like undulations, which is considered when assessing surface texture and quality.

Roughness

Refers to the texture of a surface and is quantified by the deviations in the direction of the normal vector of a real surface from its ideal form.

Micrometer

A micrometer is a precision measuring instrument that can measure extremely small distances, thicknesses, or diameters, often used in machining and mechanical engineering.

Microinch

A unit of length equal to one millionth of an inch, often used in the precision measurement of surface roughness in engineering.