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Hydrogen: Position, Sources and Preparation
Chemistry (Science Paper 2) · Chapter 10 · 6. Study of the First Element - Hydrogen
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- Position of hydrogen in the periodic table: resemblance with alkali metals and halogens
- Hydrogen from water: cold water on Na, K, Ca; hot water on Mg; steam on Al, Zn, red-hot Fe (reversible) and on carbon; activity series
- Hydrogen from dilute acids and alkalis: Mg, Al, Zn, Fe with dilute HCl or H2SO4; NaOH or KOH with Al, Zn and Pb
- Laboratory preparation and collection of hydrogen; why zinc is used; removing impurities; precautions
- Industrial manufacture of hydrogen by the Bosch process; separation of CO2 and CO