______________________ of quicklime yields slaked lime ?
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Answer: A. Hydration
Explanation
The chemical hydration of quicklime (calcium oxide) produces slaked lime (calcium hydroxide). Adding water causes a chemical reaction where water molecules bond directly into the crystal lattice. Hydration transforms solid calcium oxide lumps into a fine dry powder or aqueous suspension. Quicklime is manufactured by thermal decomposition of limestone in industrial rotary kilns. Chemical hydration releases substantial heat energy, demonstrating an exothermic reaction mechanism. Calcium hydroxide is widely known in industry and construction trades as slaked lime.
Construction mortar mixes incorporate slaked lime to improve workability and moisture retention properties. Flue gas desulfurization systems use slaked lime slurries to scrub acidic sulfur dioxide emissions. Agricultural lime applications help neutralize acidic soils and provide essential calcium plant nutrients. Dehydration involves removing water molecules from a chemical compound rather than adding them. Hydrogenation is the chemical addition of hydrogen gas across unsaturated carbon double bonds. Since hydration is the correct chemical term, the option stating none of these is wrong.
- Subject
- Engineering
- Category
- Chemical Engineering
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- —
- Difficulty
- medium
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