Question detail
How does the combustion of alkanes contribute to air pollution?
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
MCQ
Type
practice
Style
Topic
Alkanes
Question
- A. By releasing sulfur dioxide only
- B. By producing carbon dioxide and water only
- C. By emitting pollutants like carbon monoxide and nitrogen oxides
- D. By consuming oxygen
Answer
By emitting pollutants like carbon monoxide and nitrogen oxides
Explanation
The combustion of alkanes can produce various pollutants, including carbon monoxide and nitrogen oxides, which contribute to air pollution and health problems.
Common mistake
Misunderstanding Pollutant Formation
Students often confuse the types of pollutants formed in internal combustion engines, thinking that only carbon dioxide is produced.
To clarify, remember that internal combustion engines produce several pollutants, including carbon monoxide, nitrogen oxides, and unburned hydrocarbons, in addition to carbon dioxide. Focus on the combustion process: hydrocarbons react with oxygen to produce carbon dioxide and water, but incomplete combustion leads to carbon monoxide and other pollutants. For example, the reaction can be summarized as: C_xH_y + O_2 → CO + H_2O (incomplete combustion). This highlights the importance of complete combustion for reducing pollutant formation.
Related flashcards
Flashcard 1 of 5
Related practice questions
Question 1 of 5
Choose an answer, get feedback, then move sideways through the set.