MDCAT Chemical Equilibrium MCQs
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Total Topics
7
Selected Topics
1
Available MCQs
36
Question Limit
Up to 180
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Sample Chemical Equilibrium MCQs with answers
Try these questions, then open the answer to check your reasoning. Use the quiz above for more topics and a complete review.
Equilibrium
1. In an irreversible reaction, the tendency of it to go in the reverse direction is?
- A. High
- B. Low
- C. Negligible
- D. None of these options is correct
View answer and explanation
Answer: C. Negligible
An irreversible reaction goes essentially to completion in the forward direction, so the reverse reaction hardly occurs. The tendency to go backward is therefore negligible. High or low tendencies would imply significant reversibility.
Haber Process
2. The Haber process manufactures:
- A. ammonia
- B. sodium carbonate
- C. chlorine
- D. sulfuric acid
View answer and explanation
Answer: A. ammonia
The Haber process synthesises ammonia from nitrogen and hydrogen.
Equilibrium
3. Acetic acid is weak acid than sulphuric acid because of which of the following reasons?
- A. it decomposes on increasing temperature
- B. It has less degree of ionization
- C. It has -COOH group
- D. It has more inductive effect
View answer and explanation
Answer: B. It has less degree of ionization
What determines acid strength? Strong acids (like S ) ionize completely in water, giving high concentration of H⁺. Weak acids (like C COOH) ionize only partially. The degree of ionization is low. Acetic acid is weak because it ionizes only to a small extent (about 1-2% in 0.1 M solution). Sulphuric acid ionizes almost completely. Why not other options? Option A: decomposition is not the reason. Option C: having -COOH group does not make it weak; many strong acids also contain -COOH? No, strong mineral acids like S , HCl have no -COOH. Option D: acetic acid has electron-donating inductive effect from methyl group, which reduces acidity, but the primary reason is low degree of ionization. MDCAT Point Weak acids have low degree of ionization. Acetic acid is weak, sulphuric acid is strong.
About this unit
MDCAT Chemical Equilibrium — Unit 22
708 practice MCQs covering Equilibrium, Le Chatelier, Solubility Product, Common Ion, Buffers, Haber Process, Chemical Equilibrium. Select custom topics and sit tailored tests up to 180 questions per drill.
Common questions about Chemical Equilibrium practice
How many Chemical Equilibrium MCQs are available on DIFF. MDCAT?
The current Chemical Equilibrium question bank contains 708 practice MCQs across 7 topics. This is the bank size, not the length of one test. Choose your topics and a question count from 1 to 180, limited by the questions available in those topics.
Which topics does the Chemical Equilibrium quiz cover?
The selectable topics are Equilibrium, Le Chatelier, Solubility Product, Common Ion, Buffers, Haber Process, Chemical Equilibrium. Use Select all for a broad chapter drill, Clear to start a focused selection, or choose individual topics. Questions are drawn from your chosen topics, so you can target a weak concept before returning to a wider test.
How do I build a custom Chemical Equilibrium test?
Open the chapter builder, select one or more topics, enter your question count, and choose Tutor Mode or Timed Exam. The available-question total updates with your selection. Start Test generates a shuffled drill; you do not have to follow a fixed Quiz 1 or Quiz 2 sequence.
What is the difference between Tutor Mode and Timed Exam?
Tutor Mode gives feedback and an explanation after you choose an option, and you can change or clear that choice. Timed Exam runs a countdown and keeps explanations hidden until submission. Both modes let you move between questions, use the paper map, and submit for a complete review.
How do I review and download my Chemical Equilibrium quiz?
Select Submit Quiz, then Submit & View Explanations. The review includes every question in your test, all options, your selection, the marked correct answer when a key is available, and the explanation. Download PDF saves a paginated review; Download Review saves an HTML copy you can open in a browser. The review also includes DIFF. MDCAT community links.
How should I use Chemical Equilibrium MCQs to improve?
Start with a short tutor drill on one of these topics: Equilibrium, Le Chatelier, Solubility Product. Read the explanation for incorrect and uncertain answers, revise the relevant textbook section, and retry before taking a timed drill. Compare your reasoning with the answer key rather than memorising the option letter.