NSEC Answer Key 2025: National Standard Examination (NSE) is one of the most competitive science exams in India, attracting some of the brightest students. The answer key will be released in December 2025 by the Indian Association of Physics Teachers (IAPT) on their official website – iapt.org.in.
Students who appeared for the exam can download the answer key to check their answers and estimate their scores.
NSEC Answer Key 2025 is expected to be released in the first or second week of December 2025, shortly after the exam, scheduled on 23rd November 2025.
Students can use the answer key to check their responses and estimate their scores before the official results are announced. For the most accurate answer key, it is recommended to refer to the official IAPT website.
Candidates who appeared for the NSEC Exam 2025 held on 23rd November 2025 can access the NSEC Answer Key 2025 on the official website iapt.org.in.
The answer key includes the correct answers along with the responses marked by the candidates during the exam. Below is an overview of the NSEC Answer Key 2025 details:
National Standard Examination in Chemistry Answer Key 2025 |
|
Particulars |
Details |
Organization |
IAPT (Indian Association of Physics Teachers) in collaboration with HBCSE (Homi Bhabha Centre for Science Education) |
Exam Name |
National Standard Examination in Chemistry 2025 (NSEC 2025) |
NSEC Exam Date |
23rd November 2025 |
NSEC Answer Key Date |
December 2025 |
Mode of Exam |
Offline |
No. of Questions |
70 |
Types of Questions |
Multiple Choice Questions (MCQs) |
Negative Marking |
Yes, 1 mark deducted for each wrong answer |
Official Website |
NSEC Answer Key 2024 PDF Link (Active)- Click to Download
Before you start preparing for the NSEC exam it is good to know how the paper is set up. Here is an exam pattern to help you understand what to expect.
NSEC Exam Pattern 2025 |
||||
Section |
Type of Questions |
Number of Questions |
Marks per Question |
Total Marks |
Part 1 |
MCQs with one correct answer |
48 |
+3 |
144 |
Part 2 |
MCQs with one or more correct answers |
12 |
+6 |
72 |
Negative Marking for wrong answers |
Applicable in both parts |
–1 |
— |
|
Total |
60 |
216 |
NSEC Previous Year Question Paper- Click to Download
Once the NSEC 2025 Chemistry exam is conducted in 23rd November 2025 the answer key will be released by the Indian Association of Physics Teachers (IAPT) in December.
Go to the official website – https://www.iapt.org.in
On the homepage, click on the “Exams” tab.
Select “NSEC” from the list.
Look for the NSEC Answer Key 2025 link under "Papers and Solutions".
Click the link to download the PDF of the answer key and question paper.
Save the file and match your responses to calculate your tentative score.
Check: How to Prepare for NSEC?
To qualify for the Indian National Chemistry Olympiad (INChO) 2025, a candidate must:
Successfully clear Stage 1, i.e., the NSEC 2025 exam.
Be an Indian citizen pursuing studies in India.
Be in Class 12. (Exceptionally, students from Classes 10 and 11 can also apply if they clear NSEC.)
Not apply for NSEJS in the same year.
Fulfill the Indian passport eligibility criteria (Overseas Citizens of India (OCI) are not eligible for international stages).