MDCAT Carboxylic Acids MCQs
Customize your practice drill: select target topics, configure your question limit (up to 180 MCQs per test), and choose your mode.
Total Topics
3
Selected Topics
3
Available MCQs
664
Question Limit
Up to 180
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Questions will be drawn only from checked topics.
Test Configuration
Configure question count (limit 180) and testing mode.
Selected topics have 664 total questions. Test will draw 50 shuffled MCQs.
Sample Carboxylic Acids 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.
Acid Basics
1. Acetic acid is soluble in?
- A. Water, Alcohol, Ether
- B. HCl, HBr, HI
- C. Bromine water
- D. All of these options are correct
View answer and explanation
Answer: A. Water, Alcohol, Ether
Acetic acid is miscible with water, alcohol and ether in all proportions due to hydrogen bonding. Hence water, alcohol, ether is correct.
Acid Derivatives
2. Methyl ethanoate reacts with excess ethanol under transesterification conditions. The new ester is:
- A. Propyl ethanoate
- B. Ethyl ethanoate
- C. Ethyl methanoate
- D. Methyl propanoate
View answer and explanation
Answer: B. Ethyl ethanoate
The methoxy group is exchanged for ethoxy while the ethanoate acyl group remains unchanged.
Acid Basics
3. The solubility of carboxylic acid in water gradually decreases with:
- A. Decrease in molecular mass
- B. Increase in amount of acid
- C. Increase in molecular mass
- D. Decrease in amount of water
View answer and explanation
Answer: C. Increase in molecular mass
Keyword/Clue: solubility of carboxylic acid in water decreases with increase in molecular mass Concept/Formula: As the carbon chain length (molecular mass) of a carboxylic acid increases, the hydrophobic alkyl part dominates over the polar -COOH group, so water solubility decreases. Why the Other Options Are Wrong: - Option A: Decreasing molecular mass generally makes the acid more soluble, not less, because the hydrophobic part is smaller. - Option B: Increasing the amount of acid does not inherently cause a gradual decrease in intrinsic solubility; solubility is a property at given conditions. - Option D: Decreasing the amount of water affects how much can dissolve in that volume, but it is not the general structural trend behind gradual solubility decrease of homologous acids.
About this unit
MDCAT Carboxylic Acids — Unit 34
664 practice MCQs covering Acid Basics, Acid Reactivity, Acid Derivatives. Select custom topics and sit tailored tests up to 180 questions per drill.
Common questions about Carboxylic Acids practice
How many Carboxylic Acids MCQs are available on DIFF. MDCAT?
The current Carboxylic Acids question bank contains 664 practice MCQs across 3 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 Carboxylic Acids quiz cover?
The selectable topics are Acid Basics, Acid Reactivity, Acid Derivatives. 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 Carboxylic Acids 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 Carboxylic Acids 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 Carboxylic Acids MCQs to improve?
Start with a short tutor drill on one of these topics: Acid Basics, Acid Reactivity, Acid Derivatives. 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.