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Turn your MCAT chemistry notes into practice questions

Upload your chemistry notes, slides or PDFs and get multiple-choice, true/false and short-answer questions with a clear explanation for every answer.

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Why build your own MCAT chemistry question set

Most students searching for MCAT chemistry practice questions are really trying to find questions that match what they are studying right now. A printed set from a prep book is useful, but it rarely lines up with your own course notes or the topics your review is focused on this week.

Questions generated from your own chemistry slides, notes or textbook chapters
Multiple choice, true/false and short-answer formats with explanations
Study free in the browser; the Plus plan adds PDF and DOCX export
Pro adds QTI 2.1 and Moodle XML export for course platforms

Example MCAT chemistry practice questions

Which has the higher boiling point at 1 atm: ethanol or dimethyl ether?Ethanol, because it forms hydrogen bonds between molecules through its O-H group, while dimethyl ether has only dipole-dipole and London dispersion forces.

What is the hybridization of the carbon atom in CO2?sp, because each carbon has two regions of electron density (two double bonds) and no lone pairs, giving linear geometry.

A buffer of acetic acid and sodium acetate receives a small amount of strong acid. What happens to the pH?It drops only slightly, because acetate ions react with the added H+ to form acetic acid, keeping the hydrogen ion concentration nearly constant.

Does raising the temperature shift an exothermic reaction toward the products?No, it shifts toward the reactants, because by Le Chatelier's principle heat is effectively a product of an exothermic reaction.

Which quantum number determines the shape of an orbital?The azimuthal (angular momentum) quantum number l, which sets the subshell shape as s, p, d or f, since each value describes a different shape.

Generate the full set

Questions from your own material

Upload the lecture slides, textbook chapter or notes you are studying and get questions drawn from that exact content.

Explanations for every answer

Each question comes with an explanation of why the correct answer is right, so a wrong guess becomes a lesson.

Study in the browser or export

Practice on the free plan in your browser. Paid plans export to PDF, DOCX, QTI 2.1 and Moodle XML for classes or review.

How it works

Upload your chemistry material

Add a PDF, DOCX, PPTX, plain text notes or photos of pages. Photos are read with text recognition.

Choose the question types

Pick multiple choice, true/false or short answer, and generate a set covering the topics in your material.

Practice and review

Answer the questions, read the explanations, and return to the weak areas as you prepare for test day.

DeckOwl reads your material and writes questions from it, so you can practice general chemistry, organic reactions, acids and bases, and thermodynamics in the order your study plan needs. Every question includes an explanation, which lets you check the reasoning behind each answer rather than only the letter you picked.

If you need a fixed printable bank, it is worth comparing it with a commercial prep book. DeckOwl is strongest when you want questions generated from your own sources and repeated until the material sticks.

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Frequently asked questions

How many practice questions should I do for MCAT chemistry each week?

Work in short, regular sessions instead of one long block, and focus on the topics where your explanations show repeated mistakes. Reviewing the reasoning behind each wrong answer usually helps more than adding volume.

Which chemistry topics should I prioritize for the MCAT?

Prioritize the topics your own study plan and practice scores point to, such as acid-base equilibria, thermodynamics, and organic reaction mechanisms. Generate questions from the chapters you find hardest so the practice matches your gaps.

Can I export these questions to my school's learning system?

Yes. PDF and DOCX export are on the Plus plan, and QTI 2.1 and Moodle XML export are on the Pro plan. The free plan lets you study in the browser without exports.

Do I need a credit card to start?

No. You can start on the free plan without a credit card, which includes 3 generations per month. Students with a school email get 40 percent off paid plans.

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