CBSE Class 12 Question Bank PDF Download

CBSE Class 12 Question Bank PDF Download:- The CBSE Class 12 board exams 2026 will be held once a year, starting from 17 February 2026. The exam timetable has been revised, with fixed dates for main subjects like Science, Maths, English, Hindi, and Social Science. Other subjects will be grouped and held on different days. CBSE has also introduced new skill-based electives for Class 12 students. In subjects like Data Science, students may get more than one chance to appear and improve their scores. 

As this is a very important exam for college admissions and future careers, students must practise well. Using a question bank class 12 is a smart and helpful way to prepare. A good CBSE question bank class 12 gives chapter-wise questions, solved papers, and sample papers in one place. With a question bank class 12 PDF download, students can revise quickly, solve different types of questions, and feel confident before the exam. Check out the article below to get CBSE Class 12 Question Bank PDF.

CBSE Class 12 Questions

1. Which one of the following immune system components does not correctly match with its respective role?

(a) Interferons – Secreted by virus-infected cells and protect non-infected cells from further viral infection.

(b) Macrophages – Mucus-secreting cells that trap microbes entering into the body.

(c) B-Lymphocytes – Produce antibodies in response to pathogens into blood to fight with them.

(d) IgA – Present in colostrum in early days of lactation to protect infants from diseases.

Ans. (b) Macrophages are immune cells that act as cellular barriers by engulfing and destroying pathogens through phagocytosis. They do not secrete mucus.

2. Which one of the following is not the product of transgenic experiments?

(a) Pest-resistant crop variety

(b) High nutritional value in grains

(c) Drought-resistant crops

(d) Production of insulin by rDNA technique

Ans. (None) All the options listed (pest-resistant crop variety, high nutritional value in grains, drought-resistant crops, and the production of insulin by rDNA technique) are products of genetic modification or transgenic experiments.

3. A biologist studied the population of rats in a granary. He found the average natality was 280, average mortality was 200, immigration was 40 and emigration was 50. The net increase in population is:

(a) 60

(b) 70

(c) 10

(d) 90

Ans. (b)

To calculate the net increase in the population, we use the formula:

Net increase = (Natality + Immigration) - (Mortality + Emigration)

Given, Natality = 280, Mortality = 200, Immigration = 40, Emigration = 50

Net increase = (280 + 40) – (200 + 50) = 320 – 250 = 70

Therefore, the net increase in population of rats is 70.

4. India has only 2.4% of the world’s land area but its share of the global species diversity is:

(a) 8.1%

(b) 12.9%

(c) 7.3%

(d) 5.1%

Ans. (a) India, despite covering only 2.4% of the world’s land area, accounts for 8.1% of global species diversity. This highlights the country’s rich biodiversity, with a wide variety of flora and fauna present across its diverse ecosystems.

5. Out of the following, select the correct match:

(a) Transgenic cow milk – Human beta-lactalbumin protein

(b) ELISA – Antigen antibody interaction

(c) Corn Borer – cry IIA gene

(d) Cotton plant – Meloidogyne incognitia

Ans. (b) ELISA is based on antigen–antibody interaction.

For more CBSE Class 12 Practise Questions or CBSE Class 12 Question bank, check the below link.

CBSE Class 12 Question Bank

Preparing for CBSE Class 12 board exams can be tough. But the right study material will help a lot. One such helpful resource is the question bank class 12. It is a smart way to practise questions and revise better.  The PW question bank class 12 PDF download is a great choice for all students. It includes CBSE 2025 past year papers and sample question papers (SQPs) with answers. 

You will also get chapter-wise concept maps. These maps make it easy to understand topics and connect them with past year questions. The book also has many NCERT and exemplar questions, which will help you make your basics strong. Check out the Class 12 question bank below:- 

Is CBSE Question Bank Important for Class 12?

1. Helps You Understand the Exam Pattern: The CBSE question bank class 12 PDF has past year papers and sample papers. These will help you see how questions are asked in the board exam. You will understand the types of questions, marking pattern, and how to manage time during the exam.

2. Makes Revision Simple: The class 12 question bank has all important questions chapter-wise. So, you can revise faster without reading the whole textbook again. It saves time and helps you focus on the main points.

3. Boosts Confidence Before Exams: When you practise more questions from the CBSE question bank class 12 PDF, you will feel more confident. You get used to the exam style, and this reduces stress and fear before the actual exam.

4. Gives NCERT and Extra Practice Questions: Most class 12 question banks include NCERT questions, exemplar problems, and extra important questions. So, you get everything in one book, and you don’t need to search in many places.

5. Improves Speed and Accuracy: The more you practise with the CBSE question bank class 12 PDF, the faster and more correct your answers will become. 

Is PW Question Bank Good?

Yes, PW Question Bank is a great study tool for Class 12 students. It helps you practise better, understand the exam pattern, and score higher in your CBSE 2025 board exams. Here are some of the key features of PW CBSE Class 12 question banks:- 

• CBSE 2025 Past Year & SQP Solved Papers: Understand exam patterns and boost readiness with solved past year and sample papers.

• Chapter-wise Concept Maps: Visualise key topics and connect them with past year questions for easy understanding.

• NCERT & Exemplar Questions: Strengthen your basics with a good mix of NCERT and Exemplar questions.

• Handpicked & High-yield Questions from Past 10 Years: Focus on the most important and frequently asked questions.

• Competency-Focused Blueprints & Solved Questions: Improve skills with smart revision blueprints and solved examples.

• Mock Tests as per Latest Pattern: Practise with mock tests based on the latest CBSE pattern to manage time better.

Check Out: CBSE Class 12 Previous Year Paper

How to Use CBSE Class 12 Question Bank for CBSE Class 12 2026 Exam?

Check how to use the CBSE Class 12 Question bank more effectivly:

1. Start by Completing the NCERT Syllabus Thoroughly

Before jumping into question banks, make sure you complete the entire NCERT syllabus. Most questions in the CBSE board exam come directly or indirectly from NCERT textbooks. This is the base for your understanding and must not be skipped.

• Read all chapters line-by-line from NCERT books.

• Focus on examples, diagrams, definitions, and in-text questions.

• Note down formulas, important terms, and quick facts.

2. Understand the Exam Pattern and Marking Scheme

The CBSE 2026 exam will follow the official pattern with a mix of objective, short answer, and long answer questions. Knowing how marks are divided helps you prioritise topics and question types. Use the CBSE question bank class 12 to practise questions as per the mark distribution.

• For example, in Physics and Chemistry: 1-mark (MCQs), 2-mark, 3-mark, and 5-mark questions are common.

• In English: Reading (20 marks), Writing (20 marks), and Literature (40 marks).

• Maths: Application-based and case-based problems are now regular.

3. Use the Question Bank Alongside NCERT for Each Chapter

Once you’ve completed a chapter from NCERT, immediately solve the same chapter from the question bank class 12. This will strengthen your understanding and show you how questions are framed.

• Start with NCERT-based questions.

• Move to exemplar and HOTS (Higher Order Thinking Skills) questions.

• Attempt mixed question sets to boost clarity.

4. Revise with Chapter-wise Concept Maps and Past Year Trends

A good CBSE question bank class 12 PDF includes chapter-wise concept maps. These maps help you see the big picture and understand links between topics.

• Concept maps are useful during last-minute revision.

• Use them to remember formulas, processes, or timelines.

• Connect questions with important topics like "Ray Optics" (Physics) or "Integrals" (Maths).

5. Focus on High-Scoring and Frequently Asked Topics

Some chapters are more likely to appear in exams and carry higher weightage. The question bank class 12 usually highlights these for you. For example:

• Maths: Application of Derivatives, Integrals

• Physics: Electrostatics, Optics

• Chemistry: Organic Chemistry, Coordination Compounds

• Business Studies: Principles of Management, Financial Planning

• English: Flamingo stories and writing tasks like Report and Notice

• Focus on these topics with extra care.

• Solve high-yield questions regularly.

• Practise writing full-length answers for long-answer questions.

6. Attempt Mock Tests and Evaluate Performance

Most CBSE question bank class 12 PDFs come with full-length mock tests. These are based on the latest exam pattern and help you test your preparation.

• Take one mock test weekly for each subject.

• Review your mistakes after each test.

• Work on weak areas by going back to that section in the question bank.

Read More: CBSE Previous Year Question Papers Class 12 Download PDF

CBSE Class 12 Question Bank FAQs

1. What is a CBSE Class 12 Question Bank?

A CBSE Class 12 question bank is a special book or PDF that contains chapter-wise important questions, previous year papers, sample papers, and concept maps.

2. Is CBSE Question Bank Important for Class 12?

Yes, the CBSE question bank class 12 is very important for board exam preparation. It helps you practise chapter-wise questions, revise important topics, and get used to the latest exam pattern.

3. Should I Study from Question Bank?

Yes, you should study from the question bank class 12 along with your NCERT textbooks. First complete your NCERT syllabus, then solve each chapter from the question bank.

4. Is PYQ Enough for Board Class 12?

Previous Year Questions (PYQs) are helpful but not enough alone.

5. Are PW CBSE Class 12 Question Banks Reliable?

Yes, PW (Physics Wallah) question bank class 12 PDFs are highly reliable and student-friendly. They are prepared by experts, based on the latest CBSE guidelines.