Solution for Chemistry MCQs | General Stream | Question Paper 2082-2025 of Class 12 | NEB

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The Solution for Chemistry MCQs General Stream Question Paper 2082-2025 of Class 12 NEB provides a complete and reliable answer guide for students preparing for their final examinations. Designed specifically for Regular and Partial General Stream students whose registration numbers begin with 78, 79, 80, and 81, this solution set helps learners understand correct answers with clarity and confidence. By practicing with the Solution for Chemistry MCQs General Stream Question Paper 2082-2025 of Class 12 NEB, students can evaluate their performance, identify weak areas, and strengthen their conceptual knowledge effectively.

Students actively use the Solution for Chemistry MCQs General Stream Question Paper 2082-2025 of Class 12 NEB to boost exam readiness and improve accuracy in multiple-choice questions. This resource supports smart preparation by offering precise solutions aligned with the NEB syllabus, making revision faster and more efficient. Whether you aim to score higher marks or simply want to build a solid foundation in chemistry, this MCQs solution guide serves as an essential tool for achieving academic success in Class 12 NEB examinations.

The Exam Question Papers provided below - Chemistry MCQs General Stream Question Paper 2082-2025 of Class 12 NEB with subject code 3021 D for the board exam 2082-2025 and is based on the latest NEB Syllabus for the year 2079 and onwards. We will be adding more Exam Question Papers of grade xii- class 12 later on. Scroll down to Download Chemistry MCQs General Stream Question Paper 2082-2025 of Class 12 NEB Sub. Code: 3021D in pdf format which is 190 kb in size. Enjoy!

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Solutions for Chemistry MCQs General Stream Question Paper 2082-2025 of Class 12 NEB.

NATIONAL EXAMINATIONS BOARD [NEB]

Solution - Chemistry MCQs 'General Stream'

Grade XII-Class 12

For Regular and Partial General Stream Students

Examination – 2082 (2025)

(New Course)

Subject Code: 3021'D'

Full Marks – 11

Check this ...

Grade 12 Physics Exam Question Paper of the year 2080-2023 (New Course) | PDF Download.

(For regular and partial general stream's students whose first two digits of registration number starts from 78, 79, 80 and 81)

Candidates are required to give their answers in their own words as far as practicable. The figures in the margin indicate full marks.

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Multiple Choice Questions:

Attempt All the questions.

Group 'A' [11x1=11]

Rewrite the correct option of each question in your same answer sheet.

1. 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

Answer:

C) K₂Cr₂O₇

2. 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

Answer:

A) Zero order reaction

3. Gibbs-Helmholtz equation was represented as: ∆G = ∆H - T∆S.

For what value of ∆G will the reaction be spontaneous?

A) Positive

B) Zero
C) Negative

D) Infinite

Answer:

C) Negative

4. Standard reduction potential values for P, Q, R and S are +0.34V, -0.76V, +0.0V, and -3.05V, respectively. What is the correct order of their reducing power?

A) P > R > Q > S
B) S > R > Q > P

C) Q > P > S > R

D) S > Q > R > P

Answer:

A) P > R > Q > S

5. A deep blue complex is formed when conc. ammonium hydroxide is added to an aqueous solution of CuSO₄. Which of the following formulae represents the complex?

A) [CU(NH₃)₄]²⁺
B) [CU(NH₃)₄]⁺
C) [CU(NH₃)₂]²⁺
D) [CU(NH₃)₆]²⁺

Answer:

A) [CU(NH₃)₄]²⁺

6. Which of the following is the maximum possible oxidation state of the transition metals in 3d series?

A) +3

B) +6
C) +7

D) +8

Answer:

C) +7

7. Which of the following are organometallic compounds ?

i) CH₃MgI

ii) Ni(CO)₄

iii) C₄H₉Li

iv) C₂H₅ONa

v) (C₄H₉)₂SnCl₂

A) i) and ii) only

B) i), ii) and iii) only
C) i), ii), iii) and iv) only

D) i), ii), iii) and v) only

Answer:

B) i), ii) and iii) only

8. The organic compound (X) boiled with water gives phenol. What is the compound (X)?

A) Chlorobenzene

B) Benzenediazonium chloride

C) Benzenesulphonic

D) Aniline

Answer:

B) Benzenediazonium chloride

9. Which of the following compounds gives positive carbylamine reaction?

A) (CH₃)₂NH

B) (CH₃)₃N
C) (CH₃)₄N

D) CH₃NH₂

Answer:

D) CH₃NH₂

10. A compound 'Z' with molecular formula C₃H₄O₄ is heated to produce compound 'Y' and CO₂ gas. Heating of compound 'Y' with P₂O₅ forms compound 'X' and water molecule. Identify the compound 'X'.

A) Ethanoic acid

B) Ethanoic anhydride
C) Methanoic anhydride

D) Ethanal

Answer:

B) Ethanoic anhydride

11. A sequence of reactions is represented as:

Predict the name of reaction that converts (B) to (C).

A) Benzoin condensation

B) Perkin's condensation
C) Aldol condensation

D) Claisen condensation

Answer:

A) Benzoin condensation

Solution for Chemistry MCQs General Stream Question Paper 2082-2025 of Class 12 NEB.

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