Bihar Board Class 12
I.Sc. Exam Pattern
The Bihar Board Intermediate exam has a large objective part and a practical in each science subject. This guide explains the 500 marks.
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How the Inter Paper Is Set
The Bihar Board Class 12 exam is also called the Intermediate exam. It is held once a year, early in the year. A science student sits five subjects of 100 marks each.
Each theory paper has two halves. One half is objective, with one-mark questions and four options. The other half is written, with short and long answers. Both halves need their own practice.
We last checked this page in October 2026. Exam rules can change. Read the official notice on biharboardonline.bihar.gov.in before you apply.
Exam pattern
Bihar Board Class 12 science at a glance
| How it works | |
|---|---|
| Total marks | 500: five subjects of 100 marks each |
| Physics, Chemistry, Biology | 70 marks for theory and 30 for practical |
| Maths and languages | 100 marks for the theory paper |
| Objective questions | About half the theory marks. One mark each, answered on an OMR sheet. The board prints more questions than you must answer |
| Written answers | About half the theory marks: short and long answers |
| Negative marking | None |
| Pass mark | 30 marks in a 100-mark theory subject. In Physics, Chemistry and Biology: 21 of 70 in theory and 12 of 30 in the practical |
| If you miss a subject | A compartmental exam is usually held |
These pass marks are the ones published for the 2026 exam. Some websites give 33% for every subject, so confirm with the Bihar Board notice for your year. In 2026 a 100-mark paper printed 100 objective questions, and students answered any 50.
How to prepare
Four Habits for the Inter Exam
Objective questions are quick marks for a student who has practised them. The written answers need separate practice.
Practise objective questions by chapter
Half the theory marks are objective. Solve past objective questions for every chapter.
Write long answers by hand
The written half needs steps, diagrams and correct terms. Have your answers checked.
Solve past Bihar Board papers
Use the board’s own past papers and model papers, with a clock. The style repeats.
Prepare the practical
Thirty marks in each science subject come from the practical. Do not leave it to the last week.
Bihar Board Class 12 questions
Questions Students Ask About the Bihar Board Class 12 Exam
How many marks is the Bihar Board Class 12 exam?
A student sits five subjects of 100 marks each, so the total is 500. Physics, Chemistry and Biology each have 70 marks for theory and 30 for practical.
What is the pass mark in Bihar Board Class 12?
For the 2026 exam it was 30 marks in a 100-mark theory subject, such as Maths or a language. In Physics, Chemistry and Biology you needed 21 of 70 in theory and 12 of 30 in the practical. Check the Bihar Board notice for your year.
Is Bihar Board preparation enough for NEET or JEE?
The base is the same, because all three follow NCERT. But NEET and JEE ask harder questions, and they also ask from Class 11. You need extra practice for them on top of board work.
How many objective questions are there in the Bihar Board Inter exam?
About half the theory marks in each subject are objective. Each question carries one mark and has four options. The board prints more questions than you must answer. You mark the answers on an OMR sheet. There is no negative marking.
Can I write the Bihar Board Class 12 exam in Hindi?
Yes. You can write in Hindi or in English. Many students write in Hindi.
Admissions Open 2026–27
Sit in a free demo class first
Preparing for the Inter exam? See our Bihar Board Class 11 and 12 coaching, or call the admissions desk for a free demo class.