Yes, you can apply for seats in IITs through IIT JAM Chemistry if you are in the final year of your Bachelor's degree.

What is IIT JAM Chemistry?
IIT JAM (Joint Admission Test for M.Sc.) is an entrance examination conducted by one of the Indian Institutes of Technology (IITs) on a rotational basis. It is a national level examination that allows students to secure admission into various postgraduate programs offered at IITs and other participating institutes.

Eligibility Criteria for IIT JAM Chemistry
To be eligible for applying through IIT JAM Chemistry, you need to fulfill the following criteria:
1. Nationality: You should either be an Indian citizen or a foreign national.
2. Educational Qualification: You should have a Bachelor's degree in any discipline from a recognized university. For IIT JAM Chemistry, a Bachelor's degree in Chemistry or related subjects is preferred.
3. Minimum Percentage: You must have obtained at least 55% aggregate marks (general/OBC-NCL category) or 50% aggregate marks (SC/ST/PwD category) in the qualifying degree.
4. Final Year Students: If you are in the final year of your Bachelor's degree, you can also apply for IIT JAM Chemistry. However, you need to submit the proof of passing the qualifying degree at the time of admission.

Application Process
The application process for IIT JAM Chemistry involves the following steps:
1. Registration: Visit the official website of IIT JAM and register yourself by providing the required details.
2. Filling the Application Form: Fill in the necessary details such as personal information, educational qualifications, choice of examination cities, etc.
3. Uploading Documents: Upload the scanned copies of your recent photograph, signature, and other required documents.
4. Payment of Application Fee: Pay the prescribed application fee online through the available payment options.
5. Submission: After completing the above steps, submit the application form online.

Admission Process
The admission process for IIT JAM Chemistry typically involves the following stages:
1. Entrance Examination: You need to appear for the IIT JAM Chemistry entrance examination and score a qualifying cutoff to be eligible for further rounds.
2. Announcement of Results: The results of the entrance examination are declared on the official website of IIT JAM.
3. Preparation of Merit List: A merit list is prepared based on the performance of candidates in the entrance examination.
4. Counselling and Seat Allotment: Qualified candidates are called for the counseling process, where they have to fill their preferences for courses and institutes. Based on the merit list and choices filled, seats are allotted to candidates.

Conclusion
In conclusion, if you are in the final year of your Bachelor's degree, you can apply for seats in IITs through IIT JAM Chemistry. However, it is essential to meet the eligibility criteria and follow the application process accurately. The admission process includes an entrance examination, announcement of results, preparation of merit list, and counseling for seat allotment.