Revision Notes
2019
CBSE
Class 12
Your complete study companion for board exam prep
Find sample papers, worksheets, question banks, revision notes and more — organised by subject, so you can study smarter.
Explore subjects
Choose a subject to explore study materials.
Home Science
131
Mathematics
129
Business Studies
121
Political Science
109
History
106
English Core
93
Sociology
90
Geography
85
Accountancy
82
Psychology
79
Physical Education
31
Computer Science
7
Hindi Core
3
Informatics Practices
2
Mass Media Studies
2
Multimedia
2
Engineering Graphics
1
Sanskrit
1
Browse by resource type
Jump to the type of material you need.
Class 12 resources
389 results · showing 361–380
Revision Notes
2019
Chapter 12 Biotechnology and its Application Notes Class 12 with Q&A
Revision Notes
2019
Biotechnology Principles and Processes Notes for Class 12 with Q&A
Revision Notes
2019
Chapter 10 Microbes in Human Welfare Notes for Class 12 with Q&A
Revision Notes
2019
Strategies for Enhancement in Food Production Notes Class 12 with Q&A
Revision Notes
2019
Human Health and Diseases Notes for Class 12 with Question Answers
Revision Notes
2019
Chapter 7 Evolution Notes for Class 12 Biology with Questions Answers
Revision Notes
2019
Molecular Basis of Inheritance Notes for Class 12 Biology with Q&A
Revision Notes
2019
Principles of Inheritance and Variation Notes for Class 12 with Q&A
Revision Notes
2019
Chapter 4 Reproductive Health Notes for Class 12 Biology with Q&A
Revision Notes
2019
Chapter 3 Human Reproduction Notes for Class 12 Biology with Q&A
Revision Notes
2019
Sexual Reproduction in Flowering Plants Notes for Class 12 with Q&A
Revision Notes
2019
D and F Block Elements Class 12 Chemistry Notes & Question Answers
Revision Notes
2019
Aldehydes, Ketones And Carboxylic Acids Class 12 Chemistry Notes With Q&A
About Class 12 study material
Find free class-specific papers, worksheets, notes and practice resources.
Learn more →
About CBSE Class 12 study material
Ribblu organises CBSE Class 12 study material including question bank, revision notes, sample papers, question papers, test papers, worksheets across Chemistry, Physics, Biology, Economics, Home Science. The Class 12 library currently includes 2,035 published resources organised by subject and resource type.
Resources on this page are uploaded by registered Ribblu users. Students can use these PDFs for homework, unit tests and exam practice. Use the Explore subjects section above, or filter by resource type to jump to worksheets, sample papers or revision notes.
Ribblu is an independent educational resource platform and is not the official CBSE website. Students should refer to official CBSE communication for syllabus updates, exam dates and circulars. Bookmark this Class 12 page or explore the CBSE hub for all classes.
Frequently asked questions
Answers about Class 12 resources and downloads.
Where can I download free CBSE Class 12 worksheets?
Browse CBSE Class 12 worksheets and study material on this page. Open any resource to view details and download the PDF when available. You can browse resources on Ribblu for free. Guests get 1 free PDF download every 30 days (any one paper). After that, create a free Ribblu account (you get 200 points on signup); further downloads use 25 Ribblu points each (earn points by uploading papers or writing school reviews). Re-downloading a paper you already own on your account is free.
Are CBSE Class 12 sample papers available on Ribblu?
Yes. Sample papers, question papers, worksheets and revision notes appear on this page when they have been uploaded and published. Use the resource-type links to jump to the format you need.
Which subjects are available for CBSE Class 12?
Class 12 content is organised by subject — use the subject grid on this page to browse Chemistry, Physics, Biology, Economics and every other subject with published material for CBSE Class 12.
How should students use CBSE Class 12 papers for exam preparation?
Pick your subject, then practise with worksheets and previous year or sample question papers. Revise with revision notes where available, and download PDFs for offline practice before unit tests and annual exams.
Is Ribblu the official CBSE website?
No. Ribblu is an independent educational resource platform and is not the official CBSE website. PDFs are uploaded by registered users and organised by class, subject and type. Students should refer to official CBSE communication for syllabus updates, exam dates and circulars.