DIFF.MDCAT
Chemistry · Unit 30837 Practice MCQs in Bank

MDCAT Hydrocarbons MCQs

Customize your practice drill: select target topics, configure your question limit (up to 180 MCQs per test), and choose your mode.

Total Topics

7

Selected Topics

1

Available MCQs

265

Question Limit

Up to 180

Select Topics to Practice

Questions will be drawn only from checked topics.

Test Configuration

Configure question count (limit 180) and testing mode.

50 / 180 MCQs

Selected topics have 265 total questions. Test will draw 50 shuffled MCQs.

All Syllabus Notes

Sample Hydrocarbons 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.

  1. Alkanes

    1. Catalyst used in reaction CHCl3 + ½ O2 → COCl2 + HCl is ________ and its nature is _______.

    1. A. 5% methyl alcohol ... negative
    2. B. 2% Ethyl alcohol ... negative
    3. C. V2O5 … positive
    4. D. Al2O3 ….. negative
    View answer and explanation

    Answer: B. 2% Ethyl alcohol ... negative

    Chloroform is protected from oxidation to poisonous phosgene by adding a small amount of ethyl alcohol, which acts as a negative catalyst (inhibitor). V2O5 and Al2O3 are positive catalysts for other reactions. Hence 2% ethyl alcohol as negative catalyst is correct.

  2. Alkynes

    2. Which alkyne does not form a terminal acetylide ion?

    1. A. but-1-yne
    2. B. ethyne
    3. C. but-2-yne
    4. D. propyne
    View answer and explanation

    Answer: C. but-2-yne

    But-2-yne is an internal alkyne and has no hydrogen directly attached to an sp carbon.

  3. Alkenes

    3. The first member of alkene series is which among the following:

    1. A. Methane
    2. B. Ethane
    3. C. Ethene
    4. D. Ethyne
    View answer and explanation

    Answer: C. Ethene

    The alkene (CnH2n) series begins with ethene, C2H4; methane and ethane are alkanes and ethyne is an alkyne. Hence ethene is correct.

About this unit

MDCAT Hydrocarbons — Unit 30

837 practice MCQs covering Alkanes, Free Radicals, Alkenes, Benzene Structure, Benzene Reactions, Alkynes, Reaction Types. Select custom topics and sit tailored tests up to 180 questions per drill.

Common questions about Hydrocarbons practice

How many Hydrocarbons MCQs are available on DIFF. MDCAT?

The current Hydrocarbons question bank contains 837 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 Hydrocarbons quiz cover?

The selectable topics are Alkanes, Free Radicals, Alkenes, Benzene Structure, Benzene Reactions, Alkynes, Reaction Types. 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 Hydrocarbons 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 Hydrocarbons 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 Hydrocarbons MCQs to improve?

Start with a short tutor drill on one of these topics: Alkanes, Free Radicals, Alkenes. 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.