AQA · GCSE · Chemistry · Higher
Metal oxide catalyst selection
One stage in the industrial production of sulfuric acid is the reaction of sulfur dioxide with oxygen to produce sulfur trioxide. This reaction uses a catalyst to increase the rate of the reaction. The catalyst is a metal oxide.
Which is the most likely metal in the metal oxide catalyst? Use the periodic table. Tick one box.
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Marking points
- 1 Selects Vanadium (V).
Why this answer loses marks
Choose an alkali metal because the most reactive metal should be the best catalyst.
Catalyst choice is not based on maximum reactivity; use the transition-metal pattern and periodic-table position.