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Turn your chemistry notes into a hard quiz with AI

Upload PDFs, slides or notes and get challenging multiple-choice, true/false and open questions, each with an explanation.

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Practice harder chemistry with questions from your own material

Hard chemistry questions work best when they come from the exact material your instructor covers, so this tool builds a hard chemistry quiz from your own PDFs, slides or notes instead of a generic question bank.

Upload only the chapter or lab section your exam covers to keep the quiz focused.
Attempt open questions before checking multiple choice, so you practice explaining reasoning.
Read the explanation for correct answers too, since a lucky guess can hide a gap.
Regenerate a quiz on the topics you missed to repeat the hardest material.

Example hard chemistry quiz questions with answers

Why does adding a catalyst not change the position of an equilibrium?A catalyst speeds up the forward and reverse reactions equally, so it reaches equilibrium faster without changing the equilibrium constant.

What is the oxidation state of manganese in the permanganate ion, MnO4-?+7, because each oxygen is -2 (total -8) and the overall ion charge is -1.

For a first-order reaction, what determines the half-life?Only the rate constant, since t1/2 = ln2 / k, so it does not depend on the starting concentration.

Which has the higher boiling point, ethanol or dimethyl ether?Ethanol, because it forms hydrogen bonds between molecules, while dimethyl ether cannot donate hydrogen bonds.

Why is the pH of 0.1 M acetic acid higher than the pH of 0.1 M HCl?Acetic acid is a weak acid that dissociates only partly, so it produces fewer hydronium ions than fully dissociating HCl.

Generate the full set

Questions from your material

Quizzes are built from the PDFs, slides, DOCX files or photos of pages you upload, so the difficulty matches what your course actually covers.

Explanations for every answer

Each question includes the correct answer and a short explanation, so you can see why a reaction, calculation or concept works the way it does.

Three question types

Choose multiple-choice, true/false or open questions to test recall and application at the level your exam expects.

How it works

Upload your material

Add a lecture deck, problem-set notes or a chapter PDF. Photos of printed pages are read with text recognition.

Choose the question types

Pick multiple-choice, true/false or open questions and generate a quiz focused on the topics that feel hardest.

Answer and review

Take the quiz in your browser, then read the explanation for every question, including the ones you got right.

Each question can be multiple-choice, true/false or open response, and every answer comes with an explanation that shows which step of an equilibrium, titration or reaction-rate problem went wrong.

Upload a lecture deck on acid-base equilibria or a set of problem-set notes, then review the explanations before your next study session to target the concepts you keep missing.

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Frequently asked questions

How hard should chemistry quiz questions be for a first exam?

Start with questions that ask you to apply a concept to a new situation rather than recall a definition. If you can explain why each wrong option is wrong, the difficulty is about right.

How should I study for a hard chemistry quiz?

Work through problems by hand before checking the explanation, and redo any question where your reasoning was correct but the arithmetic was not. Revisiting older units every few days helps the material stick.

Can I export the quiz for my class?

Exports to PDF and DOCX are part of the Plus plan, and QTI 2.1 and Moodle XML export are available on Pro. The free plan lets you study the quiz in your browser without exports.

Does the free plan include quizzes?

Yes, the free plan includes 3 generations per month, and you can take the quizzes in your browser. Plus removes the monthly limit for unlimited generations.

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Keep exploring the topic

Review the main ideas visually or practice recalling them.