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Turn your chemistry notes into a quiz with explanations

Upload a PDF, slide deck or set of notes and get multiple-choice, true/false or open questions with an explanation for each answer. No credit card needed to start.

Create quizzes nowFree · No credit card required

Drop files here or browsePDF, DOCX, PPTX, text or photos of your notes · several files with Plus

Free · First set needs no signup · Creates quizzes in seconds

Why generate your own chemistry quiz

Many chemistry students search for a ready-made chemistry quiz on a specific unit, such as stoichiometry or acid-base equilibria. Ready-made sets rarely match the exact examples your instructor used, so a quiz built from your own lecture slides or textbook chapter is usually more useful.

Multiple-choice, true/false and open questions from the same source
Explanations written for each answer, not just the correct letter
Works with PDF, DOCX, PPTX, plain text and photos of pages
Spaced repetition on Plus and Pro for the terms you keep missing

Example chemistry quiz questions with answers

What is the mole ratio of H2 to O2 in 2H2 + O2 → 2H2O?2 to 1. The coefficients show that two moles of H2 react with one mole of O2.

Is a solution with pH 3 more acidic or more basic than one with pH 7?More acidic. The pH scale is logarithmic, and lower values mean a higher hydrogen ion concentration.

True or false: adding a catalyst changes the equilibrium constant of a reaction.False. A catalyst speeds up the forward and reverse reactions equally, so K stays the same.

What bond forms when two nonmetal atoms share electrons?A covalent bond. Shared electrons hold the atoms together, while ionic bonds involve electron transfer.

Why does ice float on liquid water?Its hydrogen-bonded structure is more open, which makes ice less dense than liquid water.

Generate the full set

Works from your material

Upload PDF, DOCX, PPTX, plain text or photos of textbook pages. Text in images is read with text recognition.

Explanations for every answer

Each question comes with a short explanation, so a wrong answer teaches you why the right one is correct.

Study in the browser or export

Free users can study right away in the browser. Plus adds PDF, DOCX and Anki export, and Pro adds QTI 2.1 and Moodle XML.

How it works

Upload your chemistry notes

Add a lecture PDF, slides or typed notes covering the unit you are studying.

Choose a question type

Pick multiple-choice, true/false or open questions, depending on how you want to practice.

Take the quiz and review

Answer the questions, read the explanations and retry the ones you missed.

DeckOwl reads your material and writes questions that stay within what you actually covered. Each multiple-choice, true/false or short answer question includes an explanation, which helps when the answer depends on a rule like balancing equations or reading a pH scale.

If you want to repeat a quiz later, the free plan gives you 3 generations per month. Plus removes the limit and lets you export to PDF or DOCX for printing.

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Frequently asked questions

How many questions should a chemistry quiz have?

Ten to twenty questions is a practical length for one unit in a single sitting. You can generate a set, then repeat the questions you missed in a later session.

Which chemistry topics produce the best quiz questions?

Topics with clear rules and worked examples, such as stoichiometry, acid-base reactions and bonding, tend to produce the most useful questions. Notes that include definitions and balanced equations give the generator more to work with.

Can I export my chemistry quiz?

Export is a paid feature. PDF and DOCX export come with Plus, and QTI 2.1 and Moodle XML export come with Pro. The free plan lets you study the quiz in the browser.

Is there a free way to try it?

Yes. The free plan includes 3 generations per month and in-browser study, and no credit card is needed to start. Students with a school email get 40% off Plus.

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Keep exploring the topic

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