Ncert Exercises & Solutions

Q.15 Catalytic converters are fitted into automobiles to reduce the emission of harmful gases. Catalytic converters change unburnt hydrocarbons into

1. carbon dioxide and water

2. carbon mono oxide

3. methane

4. carbon dioxide and methane

Ans. (a) Catalytic converters contain costly metals like rhodium and platinum-palladium as catalysts. and when exhaust gas passes to the fitted catalytic converter, tho unburnt hydrocarbons (cause of cancer) are oxidized into water and carbon dioxide.

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