# CBSE Class 12 Biology Question Paper 2023 & Marking Scheme

> Official CBSE Class 12 Biology 2023 question paper (Q.P. code 57/1/1) and marking scheme as PDFs: 70 marks, 3 hours, 33 questions.

Source: https://previousyearquestions.app/cbse-class-12/2023/biology/

The CBSE Class 12 Biology 2023 board paper (Q.P. code 57/1/1) is a 3-hour, 70-mark paper with 33 questions on 31 printed pages. Download the official question paper and CBSE’s marking scheme above.

## Paper at a glance

| | |
| --- | --- |
| Subject | Biology |
| Q.P. code | 57/1/1 (Set 1) |
| Time allowed | 3 hours |
| Maximum marks | 70 |
| Number of questions | 33 |
| Printed pages | 31 |
| Marking scheme | Official CBSE marking scheme, hosted on this page |

## CBSE Class 12 Biology across years

Compared with 2022: time allowed 2 hours → 3 hours, questions 13 → 33. Each row links that year’s paper and marking scheme. There was no board exam in 2021, and 2022 was the shorter Term 2 paper.

| Year | Time | Max marks | Questions | Q.P. code |
| --- | --- | --- | --- | --- |
| [2026](/cbse-class-12/2026/biology/) | 3 hours | 70 | 33 | 57/1/1 |
| [2025](/cbse-class-12/2025/biology/) | 3 hours | 70 | 33 | 57/1/1 |
| [2024](/cbse-class-12/2024/biology/) | 3 hours | 70 | 33 | 57/1/1 |
| **2023** | 3 hours | 70 | 33 | 57/1/1 |
| [2022](/cbse-class-12/2022/biology/) | 2 hours | — | 13 | 57/1/1 |
| [2020](/cbse-class-12/2020/biology/) | 3 hours | 70 | 27 | 57/1/1 |
| [2019](/cbse-class-12/2019/biology/) | 3 hours | 70 | 27 | 57/1/1 |
| [2018](/cbse-class-12/2018/biology/) | 3 hours | 70 | 26 | 57/1 |
| [2017](/cbse-class-12/2017/biology/) | 3 hours | 70 | 26 | 57/1 |
| [2016](/cbse-class-12/2016/biology/) | 3 hours | 70 | 26 | 57/1 |

## Marking your attempt

- Diagrams earn marks for labels; count how many the scheme expects.
- Use the scheme’s keywords (NCERT terms) in your answers; paraphrases can lose marks.
- Case-based questions are marked per sub-part, so attempt every one.
- Sit the paper in 3 hours without breaks, then mark it with the scheme the same day.

## Other CBSE Class 12 2023 subjects

- [CBSE Class 12 Physics 2023](/cbse-class-12/2023/physics/)
- [CBSE Class 12 Chemistry 2023](/cbse-class-12/2023/chemistry/)
- [CBSE Class 12 Mathematics 2023](/cbse-class-12/2023/mathematics/)
- [CBSE Class 12 English Core 2023](/cbse-class-12/2023/english-core/)
- [All CBSE Class 12 2023 papers](/cbse-class-12/2023/)

## FAQ

### How many questions are in the CBSE Class 12 Biology 2023 question paper?
The CBSE Class 12 Biology 2023 paper (code 57/1/1) has 33 questions for 70 marks in 3 hours.

### Is there an official marking scheme for CBSE Class 12 Biology 2023?
Yes. CBSE published a marking scheme for this paper, and it is hosted on this page next to the question paper.

### Which set of the CBSE Class 12 Biology 2023 paper is this?
Set 1, Q.P. code 57/1/1. Other sets use the same pattern with different questions.

### Where can I find CBSE Class 12 Biology papers from other years?
The year-by-year table on this page links every CBSE Class 12 Biology paper hosted on this site, 2016 to 2026.