AI-graded CBSE practice · Classes 8–12

Every answer,
marked like a teacher would.

Write your answer the way you would in the exam. ExamAce grades it in seconds against the official CBSE marking scheme — full marks for the right concepts, partial credit where it's due, and feedback you can actually learn from.

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🖋️ Marked in 4.2s
Chemistry · Class 10 · Chemical Reactions3 marks
Q7. Why should a magnesium ribbon be cleaned before burning in air?
Because a layer of magnesium oxide forms on the surface, which stops it from burning properly. Cleaning removes this coating so the metal can react directly with oxygen.
3/3
AI Feedback You got the oxide-layer reasoning exactly right — that's the key concept examiners look for here. Nicely explained.
Topic mastery: Strong
📘 NCERT-aligned
4,494+
Practice questions, and growing
27
Subject & class combinations
8–12
Classes covered
<5s
Typical grading time

How it works

From question to feedback in three steps.

No waiting for a teacher to return your notebook — the whole loop happens while you're still in study mode.

1

Pick a subject & chapter

Physics numericals, English comprehension, Accountancy journal entries — jump to exactly what you're revising.

2

Write your answer

Short answer, long answer or MCQ — answer it the way you would on the actual exam script.

3

Get marked instantly

A score against the question's marks, a model answer, and a topic-mastery signal so you know what to revise next.

Coverage

Practice across every subject on your date sheet.

Every question is sourced from NCERT textbooks — the same books your exam is set from.

ExamAce Practice — Subject CoverageClasses VIII–XII
VIIIClass 8
EnglishMathsScienceSocial Science
IXClass 9
EnglishMathsScienceSocial SciencePhysical EducationSkill Education
XClass 10
EnglishMathScienceSocial ScienceHealth & Physical Education
XIClass 11
EnglishPhysicsChemistryMathsBiology
XIIClass 12
PhysicsChemistryMathsBiologyAccountancyHistoryComputerized Accounting

Why ExamAce

Built around how CBSE actually grades.

✍️

Marking-scheme grading

Marks are awarded per correct concept or step, with partial credit — the same way a CBSE evaluator would mark your script.

📖

Model answers, every time

See exactly what a full-marks answer looks like right after you submit — not days later with your notebook.

📊

Topic mastery tracking

Every attempt rolls up into a Weak / Developing / Strong signal per topic, so revision time goes where it's needed.

📚

NCERT-sourced questions

Every question is drawn from the NCERT textbooks Classes 8–12 are actually examined on.

🧩

Every question type

MCQs, short answers and long answers — practise the same formats you'll see on exam day.

🎯

Free daily practice

Five questions a day, graded in full, free forever — no trial period, no credit card.

Pricing

Simple, like a marks distribution.

Start free. Upgrade only if five questions a day stops being enough — Premium is a one-time purchase, not a subscription.

Included
Free
Premium — 1 Year
Daily practice questions
5 / day
Unlimited
Instant AI grading & feedback
Model answers
Topic mastery dashboard
Priority grading queue
Price
₹0
₹499 · one year

Premium is a one-time purchase covering 1 year of access — not a subscription. It never auto-renews or bills you again; when it runs out, you simply choose whether to buy another year.

Legal

Privacy Policy

Last updated: September 2026 · Applies to the ExamAce app and this page

Who we are

ExamAce is developed and operated by RK Innovations ("RK Innovations", "we", "us"). This policy explains what information ExamAce collects, why, and how it's handled.

Information we collect

  • Account information — your name, email address, and a securely hashed password when you register. We never store your password in plain text.
  • Practice activity — the questions you attempt, the answers you submit, your scores, and the AI-generated feedback for each attempt, so your progress dashboard can be built from it.
  • Plan status — whether your account is on the Free tier or has an active Premium pass, and when that pass expires.
  • Basic technical data — standard request metadata (like IP address) used only for rate-limiting and abuse prevention, not for tracking.

We do not run advertising and do not use third-party analytics or tracking SDKs in the app.

How your answers are graded

When you submit a practice answer, its text is sent to Anthropic (the maker of Claude) solely to generate a score, feedback, and a model answer. Anthropic processes this text as our service provider under its own data-handling terms and does not use it to train models. No other content from your account is shared with Anthropic.

How we use your information

  • To create and secure your account, and keep you signed in.
  • To grade your practice answers and show you feedback.
  • To calculate your progress and topic-mastery dashboard.
  • To enforce the free-tier daily question limit and Premium entitlements.
  • To investigate abuse — such as automated sign-in attempts — using rate-limiting.

We do not sell your personal information, to anyone, ever.

Payments

Premium access, once live, is sold as a one-time purchase through Google Play's billing system, covering 1 year of access. It is not a recurring subscription — there is no auto-renewal, and we will never charge you again without you actively choosing to buy another year. RK Innovations does not directly receive or store your payment card details; Google Play handles that.

Data retention & deletion

We keep your account and practice history for as long as your account is active, so your progress isn't lost between sessions. To request deletion of your account and associated data, email us at the address below — we don't yet have a self-service delete option in the app, but we'll act on requests promptly.

Children's privacy

ExamAce is built for students preparing for CBSE Class 8–12 exams, many of whom are minors. We collect only what's described above, never request more than a name and email to create an account, and recommend that students under 18 have a parent or guardian review this policy with them before signing up.

Security

Passwords are hashed, not stored in plain text; all traffic between the app and our servers is encrypted (HTTPS); and sign-in is protected against automated password-guessing with rate limits and account lockouts.

Your rights

You can request a copy of the personal data we hold about you, ask us to correct it, or ask us to delete your account entirely, at any time, by contacting us below.

Changes to this policy

If this policy changes, we'll update the date at the top of this page. Material changes will also be noted in the app.

Contact us

Questions about this policy or your data — write to privacy@rk-innovations.in.