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Easy Free School Quiz Class 12

Class 12 School Quiz

Prepare for Class 12 exams with practice questions covering important subjects and concepts for revision.

24 Questions
30 min Duration
40% To pass
1.00 Marks / correct

Instructions

  • This quiz has 24 questions.
  • You have 30 minutes. The quiz submits automatically when time runs out.
  • You need 40% to pass.
  • There is no negative marking.
  • You can mark questions for review and return to them before submitting.
  • Correct answers and explanations are shown after you submit.

Sample Questions & Answers

A preview of 12 questions from this quiz, each with the correct answer and a written explanation. Attempt the full, timed quiz to be scored and earn XP.

  1. Question 1

    What is the derivative of x³?

    • 3x² Correct answer
    • 3x
    • x³/3
    • x²
    Explanation: The derivative of x³ is 3x².
  2. Question 2

    Which electromagnetic wave has the shortest wavelength among these?

    • Radio waves
    • Gamma rays Correct answer
    • Infrared
    • Microwaves
    Explanation: Gamma rays have the shortest wavelengths in the electromagnetic spectrum.
  3. Question 3

    What is the molecular shape of methane?

    • Tetrahedral Correct answer
    • Bent
    • Linear
    • Trigonal planar
    Explanation: CH₄ has a tetrahedral molecular geometry.
  4. Question 4

    Which process produces gametes in animals?

    • Binary fission
    • Budding
    • Meiosis Correct answer
    • Mitosis
    Explanation: Meiosis produces haploid gametes in organisms with sexual reproduction.
  5. Question 5

    What is the integral of 2x?

    • 2x²+C
    • 2+C
    • x²+C Correct answer
    • x+C
    Explanation: The integral of 2x is x²+C.
  6. Question 6

    Which constitutional amendment added GST-related provisions?

    • 61st Amendment
    • 73rd Amendment
    • 42nd Amendment
    • 101st Amendment Correct answer
    Explanation: The 101st Amendment created the constitutional framework for GST.
  7. Question 7

    What does NPV stand for in capital budgeting?

    • Nominal Price Value
    • Net Profit Volume
    • New Present Valuation
    • Net Present Value Correct answer
    Explanation: NPV means Net Present Value.
  8. Question 8

    Which vitamin is essential for normal blood clotting?

    • Vitamin C
    • Vitamin D
    • Vitamin B12
    • Vitamin K Correct answer
    Explanation: Vitamin K is important for synthesis of several clotting factors.
  9. Question 9

    What is the pH of pure water at 25°C approximately?

    • 5
    • 7 Correct answer
    • 9
    • 3
    Explanation: Pure water is approximately neutral at pH 7 at 25°C.
  10. Question 10

    Which principle says energy cannot be created or destroyed?

    • Pauli exclusion principle
    • Archimedes' principle
    • First law of thermodynamics Correct answer
    • Second law
    Explanation: The first law expresses conservation of energy.
  11. Question 11

    Which compound is an aldehyde?

    • Ethene
    • Ethanol
    • Ethanoic acid
    • Ethanal Correct answer
    Explanation: Ethanal contains the aldehyde functional group −CHO.
  12. Question 12

    Which measure describes dispersion around a mean?

    • Standard deviation Correct answer
    • Mode
    • Quartile only
    • Median
    Explanation: Standard deviation measures the spread of observations around the mean.

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Class 12 Exam Revision

Class 12 preparation requires clear understanding and repeated revision. Use practice questions to check your recall across Mathematics, Physics, Chemistry, Biology, English and Computer Science.

Combine Practice With Core Material

Quizzes should support rather than replace textbooks and detailed study resources. Review incorrect answers carefully and revise the underlying chapter.

Frequently Asked Questions

This quiz has 24 questions and 30 minutes.

You need at least 40% to pass this quiz.

No, there is no negative marking on this quiz.

Yes. You can attempt this quiz again at any time, though first-attempt XP bonuses apply only once.

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