Question detail
If the concentration of reactant A in a reversible reaction is increased, what will be the effect on the position of equilibrium?
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
MCQ
Type
practice
Style
Topic
Reversible reactions and dynamic equilibrium
Question
- A. Equilibrium shifts towards products
- B. Equilibrium shifts towards reactants
- C. No change in equilibrium position
- D. Equilibrium shifts randomly
Answer
Equilibrium shifts towards products
Explanation
The correct answer is Equilibrium shifts towards products. This answer directly addresses the question: If the concentration of reactant A in a reversible reaction is increased, what will be the effect on the position of equilibrium? It matches the approved Chemistry 8462 learning objective and the linked subtopic. The other options are incorrect because they either change the rate, catalyst, reversible reaction, equilibrium, or graph context, or they do not answer the exact point being tested.
Common mistake
Misunderstanding Equilibrium Shifts
Students often think that increasing reactant concentration will shift the equilibrium towards reactants instead of products.
Remember that according to Le Chatelier's Principle, increasing the concentration of reactants will shift the equilibrium position towards the products to counteract the change.
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