MDCAT Fundamental Principles of Organic Chemistry MCQs
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3
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157
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Sample Fundamental Principles of Organic Chemistry MCQs with answers
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Organic Classification
1. In the detection of nitrogen in an organic compound The appearance of Prussian blue colouration is due to the formation of:
- A. Fe 4 [Fe(CN 6 )] 3
- B. Na 3 [Fe(CN) 6 ]
- C. K 3 [Fe(CN) 6 ]
- D. None
View answer and explanation
Answer: A. Fe 4 [Fe(CN 6 )] 3
In the Lassaigne test, nitrogen is converted to cyanide, which with Fe2+/Fe3+ forms ferric ferrocyanide, Fe4[Fe(CN)6]3, the Prussian blue pigment. The other complexes do not give this colour. Hence Fe4[Fe(CN)6]3 is correct.
Isomerism
2. Cis-trans isomerism is a type of:
- A. Functional-group isomerism
- B. Geometrical isomerism
- C. Chain isomerism
- D. Position isomerism
View answer and explanation
Answer: B. Geometrical isomerism
Cis and trans forms arise from restricted rotation and are geometrical stereoisomers.
Organic Classification
3. Which of the following is NOT typically considered a peculiar feature of organic compounds?
- A. Non-ionic (covalent) character
- B. low melting and boiling points
- C. high melting and boiling points
- D. Existence of isomerism
View answer and explanation
Answer: C. high melting and boiling points
Organic compounds generally have lower melting and boiling points compared to inorganic compounds due to the weaker intermolecular forces between their covalent molecules.
About this unit
MDCAT Fundamental Principles of Organic Chemistry — Unit 29
540 practice MCQs covering Organic Classification, Functional Groups, Isomerism. Select custom topics and sit tailored tests up to 180 questions per drill.
Common questions about Fundamental Principles of Organic Chemistry practice
How many Fundamental Principles of Organic Chemistry MCQs are available on DIFF. MDCAT?
The current Fundamental Principles of Organic Chemistry question bank contains 540 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 Fundamental Principles of Organic Chemistry quiz cover?
The selectable topics are Organic Classification, Functional Groups, Isomerism. 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 Fundamental Principles of Organic Chemistry 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 Fundamental Principles of Organic Chemistry 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 Fundamental Principles of Organic Chemistry MCQs to improve?
Start with a short tutor drill on one of these topics: Organic Classification, Functional Groups, Isomerism. 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.