There are several ways to get a free copy of the S Chand Class 9 Chemistry book. Here are some of them:

1. Check with your school: Some schools provide their students with free textbooks. Check with your school if they can provide you with a copy of the S Chand Class 9 Chemistry book.

2. Borrow from a library: You may be able to borrow the book from a local library. Check with your local library to see if they have a copy of the book available.

3. Download from EduRev: EduRev is a platform that provides free study materials, including textbooks. You can download the S Chand Class 9 Chemistry book for free from the EduRev website.

4. Ask for help from online communities: You can ask for help from online communities such as Quora or Reddit. There may be people who can provide you with a free copy of the book.

5. Look for free ebook websites: There are several websites that provide free ebooks. You can search for the S Chand Class 9 Chemistry book on these websites and download it for free.

In summary, there are several ways to get a free copy of the S Chand Class 9 Chemistry book. You can check with your school, borrow from a library, download from EduRev, ask for help from online communities, or look for free ebook websites.