MS Chauhan's book is one the best book for organic chemistry and its advance problem .
Here is a downloadable pdf link but you need to search on google :
https://drive.google.com/file/d/14xAkf7yQWlR6F6MfH_fJ__zVFPH6pdb/view
you can also try
https://www.google.com/search?q=advanced+problems+in+organic+chemistry+for+jee+by+ms+chauhan+pdf+solution
but you need to verify the source and the file authenticity before using it
MS Chauhan's book is one the best book for organic chemistry and its advance problem .
Here is a downloadable pdf link but you need to search on google : MS Chauhan's book is one the best book
https://drive.google.com/file/d/14xAkf7yQWlR6F6MfH_fJ__zVFPH6pdb/view MS Chauhan's book is one the best book
you can also try
https://www.google.com/search?q=advanced+problems+in+organic+chemistry+for+jee+by+ms+chauhan+pdf+solution MS Chauhan's book is one the best book
but you need to verify the source and the file authenticity before using it
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