Welcome to the Quiz!
This quiz contains 13 questions from a mix of 1 subtopics.
Which of the following reactions do alkanes undergo?
(Select all that apply).
substitution
combustion
addition
elimination
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What are the products of complete combustion of alkanes?
carbon monoxide and water
carbon dioxide and hydrogen
carbon and water
carbon dioxide and water
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Which of the following statements about alkanes is true?
alkanes are highly reactive due to their polar nature
smaller alkanes are less readily combustible
alkanes have weak covalent bonds
larger alkanes release more energy per mole when combusted
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What is the main difference between complete and incomplete combustion of alkanes?
the availability of oxygen
the temperature of the reaction
the type of alkane being combusted
the amount of energy released
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Which pollutant is created during incomplete combustion as soot?
carbon dioxide
carbon monoxide
carbon
nitrogen oxides
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What is the primary environmental impact of carbon dioxide?
acid rain
photochemical smog
respiratory issues
global warming
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Which pollutant is formed by oxidising sulfur impurities in some fuels?
sulfur dioxide
carbon monoxide
unburnt hydrocarbons
nitrogen oxides
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Which of the following compounds does sulfur dioxide react with in flue gas desulfurisation?
(Select all that apply).
calcium carbonate
calcium sulfite
calcium oxide
calcium sulfate
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What is the primary role of catalytic converters in vehicles?
to remove pollutants from exhaust gases
to improve fuel efficiency
to enhance vehicle performance
to reduce engine noise
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Which of the following reactions occurs in a catalytic converter?
CH4(g) + 2O2(g) ➔ CO2(g) + 2H2O(g)
CO(g) + H2O(g) ➔ CO2(g) + H2(g)
2CO(g) + 2NO(g) ➔ 2CO2(g) + N2(g)
2NO(g) + O2(g) ➔ 2NO2(g)
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What is the primary purpose of flue gas desulfurisation in power stations?
to remove unburnt hydrocarbons from flue gases
to remove sulfur dioxide from flue gases
to remove nitrogen oxides from flue gases
to remove carbon dioxide from flue gases
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Which of the following pollutants contribute to the formation of photochemical smog?
(Select all that apply).
nitrogen oxides
carbon monoxide
unburnt hydrocarbons
sulfur dioxide
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What is the term for the reaction of alkanes with oxygen to release energy?
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