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  1. Prepare for an exam
  2. /Board Exams
Exam preparation

Board Exams preparation

Class 10 and Class 12 board practice, chapter by chapter.

85 mock tests · 4,236 questions · 1,916 problems

With a Standard plan

Paper pattern

Our full board exam papers follow this pattern.

  • Physics, Chemistry, Mathematics and Biology

    Each subject: 20 questions, 30 minutes

    Correct answer +1, no marks lost for a wrong answer

Timed mock tests

Chapter tests and full papers. You get your score as soon as you finish.

  • MathematicsPermutations and Combinations: Chapter Test 15 questions · 20 minStart now
  • MathematicsThe Fundamental Principle of Counting: Practice Paper 15 questions · 20 minStart now
  • BiologyAnimal Kingdom: Chapter Test 15 questions · 20 minStart now

Question sets

No timer. Work at your own pace.

  • MathematicsCombinations: Practice Questions10 questions
  • MathematicsPermutations: Concept Check10 questions
  • MathematicsThe Fundamental Principle of Counting: Check Your Understanding10 questions
  • Biology

Practice questions and problems

Hardest first. Try each one on paper before you see the answer.

Chemistry

Questions

  • HardWhy is the enthalpy of vaporisation of a liquid much larger than its enthalpy of fusion?
  • HardEach hybrid orbital in a set is one fifth s orbital. How many hybrids does the set contain, and what is the hybridisation?
  • HardOne gram each of four gases is taken. Which sample holds the largest number of atoms?

All problems for this exam

  • Board Exam problems →

The full list, by topic and level, each with a worked solution.

Preparing for another exam?

  • JEE Main
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  • NEET
  • Olympiads
  • SAT
  • AP
  • A-Level
  • IB
BiologyHow Animals Are Classified: Practice Paper 15 questions · 20 minStart now
  • ChemistrySystems, Heat, Work and the First Law: Practice Paper 15 questions · 20 minStart now
  • MathematicsTrigonometric Ratios: Practice Paper 15 questions · 20 minStart now
    • All Physics papers30
    • All Chemistry papers25
    • All Mathematics papers14
    • All Biology papers16
    Chordates: Review Questions
    10 questions
  • BiologyAnimals Without a Backbone: Concept Check10 questions
  • BiologyHow Animals Are Classified: Test Yourself10 questions

    • All Board Exams question sets →

  • HardRank Cl₂O, H₂O and OF₂ by bond angle, from the largest.
  • HardAmmonia joins each boron halide by giving its lone pair to boron. Which boron halide forms the strongest bond with ammonia?
    • More Chemistry questions for Board Exams →

    Problems with worked solutions

    • HardFor N₂O₄(g) ⇌ 2NO₂(g), Δ H° = +57.2 kJ/mol and Δ S° = +175.8 J/(K mol).
    • HardSupercooled water freezes at 263 K. Take Δ H = -6.01 kJ/mol and Δ Ssystem = -22.0 J/(K mol).
    • HardBreaking one mole of CH₄(g) into atoms takes 1665 kJ.
    • Hard1.00 mol of an ideal gas at 300 K expands at constant temperature from 10.0 bar to 2.00 bar.
    • HardHydrogen sulphide, hydrogen selenide and hydrogen telluride boil at 213 K, 232 K and 271 K; their…
    More Chemistry problems for Board Exams →

    Mathematics

    Questions

    • HardCodes of 3 different letters are made from the letters of PLANETS. Each code uses both vowels and one consonant. How many codes are there?
    • HardFor which natural number n is (n + 1)! = 20 × (n - 1)!?
    • HardWhich pair is the square roots of 3 + 4i?
    • HardIshaan says that the sum of the first 10 terms of an arithmetic progression is always 10 times its 5th term. What is the truth?
    • HardWithout a table, what is sin 75° cos 15°?
    More Mathematics questions for Board Exams →

    Problems with worked solutions

    • HardThree neighbours in a row of Pascal's triangle, ⁿC_(r - 1), ⁿCr and ⁿC_(r + 1), are in the ratio 1…
    • HardProve from the formula ⁿCr = (n!)/(r! (n - r)!) that ⁿCr + ⁿC_(r - 1) = ^(n + 1)Cr for 1 ≤ r ≤ n.
    • HardAll the arrangements of the letters of TIGER are listed in dictionary order.
    • HardThe word ALLAHABAD has 9 letters. How many arrangements of its letters are there?
    • Hard

    Biology

    Questions

    • HardDoctors studying an early embryo want it to pass 1800 cells. If its cell count doubles at each division, starting from one zygote, which division takes it past that mark?
    • HardA gardener strips a ring of bark from the trunk of a young guava tree, which cuts the phloem but leaves the wood. Weeks later, the bark just above the ring swells. Why?
    • HardWater rises 0.5 m by capillary action in a tube of radius 30 µm. The height goes as 1/r. How high does it rise in a tube of radius 15 µm?
    • HardA molecule takes 0.5 s to diffuse across 4 µm. The time grows with the square of the distance. How long does it take across 12 µm?
    • HardA cube shaped cell grows from a side of 3 µm to a side of 6 µm. By how many times does its volume grow?
    More Biology questions for Board Exams →

    Problems with worked solutions

    • HardA pigeon and a garden lizard rest on the same roof.
    • HardIn the damp soil of a Kerala garden, Anu finds a long animal with no legs.
    • HardA child finds a starfish ( Asterias ) in a rock pool and calls it a fish.
    • HardA teacher shows three worms: a leech ( Hirudinaria ), a marine worm with side flaps ( Nereis ), and…
    • Hard

    Python Programming

    Questions

    • MediumInflated pods (I) are dominant over constricted ones (i). A function says `"inflated" if g == "II" else "constricted"`. What ratio does it report for the boxes of Ii with Ii?
    • MediumOne logistic step for a pond of algae. What does it print? `r, K, N, dt = 0.25, 1500, 375, 2; N = N + r * N * (1 - N / K) * dt; print(N)`
    More Python Programming questions for Board Exams →
    Find the natural number n for which (n!)/((n - 2)!) = 132. Then find x if 1/(6!) + 1/(7!) = x/(8!).
    More Mathematics problems for Board Exams →
    In a sea aquarium, Meera sees tiny branched colonies fixed to a rock.
    More Biology problems for Board Exams →