Question detail
In a graph showing the reaction rate against concentration, what does a curve that levels off indicate?
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
MCQ
Type
practice
Style
Topic
Mathematical requirements and assessment objectives
Question
- A. The reaction is complete
- B. The reaction rate is increasing
- C. The concentration is too low
- D. The reaction is at equilibrium
Answer
The reaction is complete
Explanation
The correct option is The reaction is complete. The reaction is complete is the best answer because it directly supports the AQA A-Level Chemistry objective to plot, interpret and analyse graphs. This reasoning is anchored to Mathematical requirements in Mathematical requirements and assessment objectives, and it separates graph from similar A-Level ideas rather than relying on a vague recall statement. Other options are weaker if they use the wrong evidence, calculation, mechanism, observation, unit, or conclusion for this subtopic.
Common mistake
Misinterpreting Graph Slopes
Students often confuse the slope of a graph with the y-intercept, leading to incorrect interpretations of data trends.
Focus on understanding that the slope represents the rate of change between the variables plotted on the axes, while the y-intercept indicates the value of the dependent variable when the independent variable is zero.
Related flashcards
Flashcard 1 of 5
Related practice questions
Question 1 of 5
Choose an answer, get feedback, then move sideways through the set.