OMR-Ready MCQ Mock with Bubble Key
An all-MCQ mock formatted for OMR sheets, with a clean answer key.
Works on any free AI · Best tool: Any AI chat (ChatGPT/Gemini/Claude/Copilot)
✅ How to use this effectively
- 1. State number of MCQs and chapters.
- 2. Set the marking scheme (and negative marks).
- 3. Send the prompt.
- 4. Copy the key into your OMR checker.
- For a trustworthy answer key: paste the finished paper into a FRESH chat and ask it to solve and grade it as an unseen exam (it catches its own slips).
🔧 If it is not right, reply with this: If two options seem correct, reply: "Question 12 has two defensible answers - rewrite the options so exactly one is correct, and confirm the key."
THE PROMPT
ROLE: Act as a competitive-exam paper-setter who builds OMR-ready objective papers.
CONTEXT: I teach [CLASS/GRADE] for [BOARD or EXAM e.g. JEE / NEET / NTSE / State Board]. I use OMR answer sheets, so I need an all-MCQ mock with single-correct options (A, B, C, D) and a clean key for fast checking.
YOUR TASK:
1. Create [NUMBER e.g. 30] single-correct MCQs covering: [LIST CHAPTERS].
2. Marking scheme: [e.g. +4 correct, -1 wrong, 0 unattempted]. State it clearly in the header.
3. Each question must have exactly FOUR options where only ONE is correct; the other three must be plausible distractors (common student mistakes), not obviously silly.
4. Provide a compact ANSWER KEY (just question number to letter) plus a short one-line reason for each correct answer.
INPUT: Here are the chapters, number of questions and marking scheme: [PASTE DETAILS HERE].
HOW TO WORK IT OUT: Solve each MCQ internally first. VERIFY every correct option by solving the question two independent ways and by checking that the other three options are genuinely wrong. Never invent formulas or values. Make sure exactly one option is correct per question. Keep all maths legible in clean plain text or LaTeX.
OUTPUT FORMAT (exact order):
HEADER: Subject, Class, Board/Exam, Number of Questions, Marking Scheme, Time.
QUESTIONS: numbered 1 to N, each with options (A) (B) (C) (D) on clear lines, formatted simply so it maps to an OMR sheet.
ANSWER KEY TABLE: Q. No. | Correct Option.
REASON KEY: one short line per question explaining the correct choice and the main trap.
VERIFICATION NOTE: confirm single-correct checks done.
RULES: Exactly one correct option each. Plausible distractors only. Difficulty true to [BOARD or EXAM]. Original questions.
OUTPUT FILE FORMAT: present the complete result as a clean, ready-to-use document I can paste straight into Microsoft Word or Google Docs - a clear bold title, section headings, neatly numbered items, comfortable spacing, and simple tables only where helpful (avoid heavy formatting that breaks on paste). It must also print cleanly to PDF on A4 (File > Print > Save as PDF). Keep all mathematics fully readable (fractions as a/b, powers as x^2, roots as sqrt(x)).
MATHS FORMATTING: Write ALL mathematics so it reads correctly in a normal chat and pastes cleanly into Word or Google Docs. Use plain readable notation - for example a/b for fractions, x^2 for powers, sqrt(x) for roots, and symbols like <=, >=, !=, +-, pi, theta, integral and sum. Do NOT output raw LaTeX or code such as \frac{}{}, \sqrt{}, x^{2}, $...$ or \( ... \) - these appear as broken symbols to a teacher in a free chat.
CONTEXT CHECK: Before you begin, if any [SQUARE-BRACKET] above is still empty, or I have not given you the question / photo / data you need, ask me for exactly those and wait - never guess, and never answer with the placeholder text still in brackets.
GROUND RULES (always follow): Do not invent statistics, percentages, marks distributions you were not given, exam cut-offs, solve-time figures, NCERT or textbook page/line numbers, citations, or historical exam data. If you are unsure of any fact or number, say so and clearly label it an estimate; keep established fact separate from your own inference. Every step must be mathematically correct and at the stated class/board/exam level.
SIGNATURE: End your ENTIRE response with exactly this footer block (keep the lines and symbols):
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🔗 Free tools & to reach me: https://jee-prompt-studio.pages.dev/
Questions, feedback or appreciation are always welcome.
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