Catalyst used in the 'catalytic converter' employed in automobile exhaust line for complete combustion/oxidation of carbon monoxide, nitrogen oxides and hydrocarbons is__________________?
Correct answer: B. Platinum
- A. Alumina
- B. Platinum
- C. Vanadium pentoxide
- D. Iron oxide
Explanation
Platinum is a precious-metal catalyst used in automobile catalytic converters to promote oxidation of carbon monoxide and hydrocarbons and treatment of nitrogen oxides. Modern converters commonly use platinum together with palladium and rhodium, but platinum is the listed choice.
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