Question

The catalytic converter in a car contains which of the following catalysts to serve as a catalyst to change carbon monoxide, which is toxic, into carbon dioxide?
A. Sulphuric acid
B. Hydrogen peroxide
C. Platinum
D. Enzymes

Answer 1

:Hint:The catalyst used in catalytic converters to change carbon monoxide into carbon dioxide is the chemical element its powder is used to catalyze the ignition of hydrogen. It’s one of the oxide is known as Adam's catalyst that is used as a hydrogenation catalyst for vegetable oil.

Complete answer:
Catalytic converter is a device which is used to reduce toxic gases and pollutants in exhaust gas by applying an internal combustion engine into less toxic pollutants. This conversion is done by catalyzing a redox reaction.
In automobiles, the catalyst which is used to change carbon monoxide into carbon dioxide is platinum. Platinum is especially used in automobiles as a catalytic converter. Due to the presence of platinum the complete combustion of low concentrations of unburned hydrocarbons takes place from the exhaust into carbon dioxide and water vapor. Platinum is also used as a catalyst in the petroleum industry in a number of separate processes for example catalytic reforming.
Platinum dioxide is called Adam’s catalyst. Adam’s catalyst is used in hydrogenation of hydrocarbons such as vegetable oil.
Some physical properties of pure platinum are that it is very lustrous. It also shows ductility and malleability. It appears as a silver-white metal. It is much more ductile than other metals like gold, silver or copper, but it is less malleable than gold. Platinum has excellent resistance to corrosion. It is stable at high temperatures and shows stable electrical properties.

Hence, option C is correct.

Note:
Catalytic converters are of four types such as Two way, Three way, Diesel engine and Lean-burn spark-ignition engine. Catalytic converters are usually used with internal combustion engines fueled by gasoline or diesel including lean-burn engines as well as kerosene heaters and stoves.