Built for CBSE Class XII Chemistry
Study less randomly. Score higher with a plan.
PrepAI finds your weak spots and turns them into a focused daily study plan. Practice in minutes, learn from mistakes, and prepare with board-style mocks.
Take a quick diagnostic
Find gaps
See which Chemistry topics are costing you marks.
Follow your daily plan
10 questions
Practice the right questions without searching through folders.
Learn from mistakes
Retry smarter
Strengthen weak areas before they cost marks again.
Product evidence
Your student dashboard
Mock readiness
Focused today
01
Diagnostic
02
10-question DPP
03
Commit before reveal
04
Repair queue
05
Official-format mock
Answer discipline
Rubric locked until commit
Content gate
Approved questions only
Parent proof
Source coordinate lookup
Trust constraints
PrepAI shows how the study loop is constrained before asking for trust.
Source-safe
Official sources guide structure and coordinates; PrepAI content stays coordinate-based.
Deterministic tools
Chemistry calculators and paper compilation use local rules, not runtime AI guesses.
Answer-masked
Answers, explanations, and rubrics stay locked until the student commits a response.
Review-gated
Questions must pass content review before DPP, practice, assignment, or mock use.
Secure rendering
Formula rendering uses KaTeX with trust:false and unsafe math commands blocked.
Public utility wedge
Free deterministic Chemistry tools
Students should not leave the platform to balance equations, inspect formulas, or check physical chemistry calculations. Tools stay local, fast, and connected to outcomes.
Equation Balancer
Balance reactions locally with deterministic linear algebra and show the derivation path.
Periodic Table
Inspect 118 elements with configurations, transition-metal notes, and Chemistry outcome links.
Named Reactions
Review organic reaction cards with conditions, mechanisms, and common trap notes.
Chemistry Calculators
Use molarity, dilution, pH, Nernst, and physical chemistry helpers with formula context.
Formula Sheet
Class XII Chemistry formula cards with KaTeX, units, assumptions, and common mistakes.
Diagnosis, retrieval, repair
The study loop is the product.
PrepAI is not another chatbot, course catalog, or question dump. It is a deterministic daily study machine: diagnose root causes, compile the DPP, hide answers until commitment, repair mistakes, and build exam readiness.
What to practice today
Daily retrieval chooses due cards, weak outcomes, and stretch topics instead of dropping students into a random question bank.
Why you are weak
Diagnostic and practice signals trace mistakes back to outcomes, prerequisites, and misconception tags students can act on.
How to repair before the exam
Wrong answers move into a repair loop with reveal-after-commit explanations, spaced retrieval, and board-style mock readiness.
Product moat
Visual moat and trust surfaces
One reviewed learning graph, four compounding surfaces.
PrepAI's moat is a source-safe curriculum graph plus deterministic exam compiler plus repair loop plus teacher and parent views over the same data. The student cockpit, teacher heatmap, parent proof view, and content review queue all point back to the same reviewed Chemistry learning record.
Source-safe curriculum graph
Chapters, topics, outcomes, prerequisites, formulas, source locators, and review states stay connected before any item reaches practice.
Deterministic exam compiler
Board-style papers are compiled from reviewed questions, section rules, marks, difficulty mix, and answer-key separation.
Spaced repair loop
Mistakes stay open until retrieval succeeds, so the system repairs root causes instead of treating explanation reading as mastery.
Shared teacher and parent views
Student, teacher, and parent workspaces read the same mastery, mistake, source, and readiness data at the right permission level.
Parent trust
Verify the source before you trust it
Parents can check whether a practice question has an approved NCERT coordinate, source metadata, and review status without exposing raw answer keys.
NCERT source verification
Enter a PrepAI question ID to check its approved textbook coordinate and source hash status.
Trust constraints
Parents can inspect source coordinates without exposing answer keys or copied textbook text.
Source-safe
Official sources guide structure and coordinates; PrepAI content stays coordinate-based.
Deterministic tools
Chemistry calculators and paper compilation use local rules, not runtime AI guesses.
Answer-masked
Answers, explanations, and rubrics stay locked until the student commits a response.
Review-gated
Questions must pass content review before DPP, practice, assignment, or mock use.
Secure rendering
Formula rendering uses KaTeX with trust:false and unsafe math commands blocked.
Verification contract
- - Question ID maps to a reviewed PrepAI content item.
- - The item has an NCERT chapter, section, and coordinate locator.
- - Source hash or source-record status is visible without exposing textbook text.
- - Answer keys, rubrics, and explanations remain outside parent lookup.
Sample coordinate shape
CBSE-12-CHEM-CH2 / Nernst equation / NCERT Chemistry-I Chapter 2 section locator / hash status pending or verified.
Fail-closed conversion
Plan State
Free tools and the daily loop can be explored now. Paid checkout stays locked until provider verification is complete.
Free
available now
Free
- 5 practice questions/day
- All deterministic tools
- Periodic table
- Equation balancer
- Named reactions
Pro
provider verification pending
Pilot opening soon
- Unlimited practice
- Exam paper generation
- FSRS spaced repetition
- All question types
- Reveal-after-commit explanations
- Progress analytics
Institution
provider verification pending
School pilot pending
- Everything in Pro
- Teacher heatmaps
- Assignment dispatch
- Classroom misconception clusters
- Review-gated question bank