Question

Which of the following is not true?

a) Catalytic converters facilitate both oxidation and reduction reactions simultaneously.

b) Catalytic converters that reduce the nitrogen in NO can also reduce the sulfur in SO₂, resulting in production of the toxic gas H₂S when sulfur is present in the fuel.

c) CO and other incompletely oxidized forms of carbon are produced in greater quantities when gasoline is combusted with inadequate oxygen present.

d) Reduction of the nitrogen in NO (to yield N₂ and O₂) is energetically favorable, but because the activation energy is high, the reaction must either be catalyzed or done at high temperatures to proceed at an appreciable rate.

e) Carbon-based compounds (usually CO and hydrocarbons) are reduced in a catalytic converter to yield CO₂ and H₂O.

Answer 1

A. true catalytic converters reduce pollutant by redox reactions which means both oxidation and resuction reaction.

B.False catalytic converter cannot reduce sulfur as H₂S because Sulfur itself act as poison for theses converters and inhibit reduction of nitrogen also

C. True. when gasoline is combusted with inadequate oxygen which is known as incomplete combustion leads to production of carbon,CO, and hydroxides of carbon

D. True, reduction of NO is energetically favourable since it can occur through enzymes also. since activation energy is high should be done in presence of catalyst like iron and at high temperature.

E.True. two way converters combine Carbon monoxide with oxygen to form CO₂ and H₂O

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