How many questions and marks are in the NEB 2082 Class 12 Chemistry (3021'D') paper?

22 questions worth 75 marks. There are 11 of 1 mark, 8 of 5 marks and 3 of 8 marks.

Is this the real board paper?

Yes. It is the NEB 2082 paper, code 3021'D', typed up from the original and checked by the GyanMul team.

Are the answers included?

Answers to the 11 one-mark questions are on this page (GyanMul's model answers; the NEB does not publish an answer key). Worked answers and the marking for every other question are in GyanMul Prep, free with an account.

Can I download this paper as a PDF?

Yes. Press "Print / Save as PDF" at the top of the page and choose "Save as PDF" in your browser's print window.

National Examinations Board · Class 11–12

NEB 2082 Class 12 Chemistry question paper

NEB 2082 Class 12 Chemistry (3021'D') has 22 questions worth 75 marks, with 3 hours to answer them. It has 11 of 1 mark, 8 of 5 marks and 3 of 8 marks.

The Class 12 examination is conducted by the National Examinations Board (NEB), Nepal. This paper was typed up from the original and checked by the GyanMul team.

Every question is given in Nepali and English, as the paper prints it.

22 questions
75 marks
3 hours
Code 3021'D'

Sit this paper as a timed mock test, freeनेपालीमा पढ्नुहोस्

The account is free. Timer, marking, worked answers and help from Gurubaa, in one place.

Questions

Answers are shown for the 11 one-mark questions. They are GyanMul's model answers: the NEB does not publish an answer key, so these are not the board's answers.

Question 11 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
धाराको पानीमा रहेको क्लोराइड आयनको मात्रा पत्ता लगाउन प्रयोगशालामा आयतनमितीय विश्लेषण (volumetric analysis) प्रयोग गरिन्छ । माथि उल्लिखित अनुमापनका लागि तलका मध्ये कुन घोल प्रयोग गर्न सकिन्छ ? (A) BaCl₂ (B) NaOH (C) K₂Cr₂O₇ (D) AgNO₃
Answer: AgNO₃
Question 21 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
कुनै एक प्रतिक्रियाको अर्ध-आयु (half-life) ५० सेकेन्ड छ र प्रतिक्रियकको प्रारम्भिक सान्द्रता दोब्बर बनाउँदा पनि त्यो उत्तिकै रहन्छ । त्यो प्रतिक्रियाको कोटि (order) कति हो ? (A) Zero order reaction (B) First order reaction (C) Second order reaction (D) Pseudo-first order reaction
Answer: First order reaction
Question 31 mark
Gibbs-Helmholtz equation is represented as : $\Delta G = \Delta H-T\Delta S$

Questions learners ask

How many questions and marks are in the NEB 2082 Class 12 Chemistry (3021'D') paper?: 22 questions worth 75 marks. There are 11 of 1 mark, 8 of 5 marks and 3 of 8 marks.
How much time is given for this paper?: 3 hours (180 minutes).
Is this the real board paper?: Yes. It is the NEB 2082 paper, code 3021'D', typed up from the original and checked by the GyanMul team.
Are the answers included?: Answers to the 11 one-mark questions are on this page (GyanMul's model answers; the NEB does not publish an answer key). Worked answers and the marking for every other question are in GyanMul Prep, free with an account.
Can I download this paper as a PDF?: Yes. Press "Print / Save as PDF" at the top of the page and choose "Save as PDF" in your browser's print window.

Source: prep.gyanmul.com/neb/past-papers/class-12/chemistry/2082 · GyanMul Prep