National Examinations Board · Class 11–12

NEB Class 12 Chemistry questions

NEB Chemistry past papers, model question sets and chapter quizzes for Class 12, in one place.

22 questions, in Nepali and English wherever the paper has both. Below are a few sample questions; the full papers, marking and answers are in GyanMul Prep.

The account is free. Practice, marking and help from Gurubaa, in one place.

  • 1 Past papers
  • 22 questions

Sample questions

Answers are inside GyanMul Prep.

  1. NEB 2082 (2025) Chemistry — Grade XII (3021'D') · 1 mark

    The half-life of a certain reaction is 50 seconds and it remains constant even if the initial concentration of the reactant is doubled. What is the order of the reaction ? (A) Zero order reaction (B) First order reaction (C) Second order reaction (D) Pseudo-first order reaction

  2. NEB 2082 (2025) Chemistry — Grade XII (3021'D') · 1 mark

    To estimate the chloride ion present in tap water, volumetric analysis has been commonly used in laboratory. Which of the following solutions can be used for the above mentioned titration ? (A) BaCl₂ (B) NaOH (C) K₂Cr₂O₇ (D) AgNO₃

Practise all questions free in GyanMul Prep

Past papers

  • NEB 2082 (2025) Chemistry — Grade XII (3021'D')Chemistry · 22 questions · 75 marks · 180 minPractise

How to use past papers well

  • Sit a whole paper against the clock, the way the exam will be.
  • Check each answer against the marking, and ask Gurubaa why when one goes wrong.
  • Come back to the weak chapters a few days later and practise them again.

Questions learners ask

Are these real NEB past papers?
Yes. These are the 2082 papers as the board set them, typed up and checked by the GyanMul team. Each paper shows its code.
Is GyanMul Prep free?
Yes. The account is free, and right now every question, the marking and Gurubaa's help are free too.
Where are the answers?
This page shows only a few sample questions. The full papers, answers and marking are inside GyanMul Prep once you sign in.
Are the questions in Nepali too?
Yes. Wherever the paper has both, every question is in Nepali and English, and you can practise in the language you prefer.