Method used: First Chemistry and its related subjects are selected through three standard and globally renowned controlled vocabulary tools such as Dewey Decimal Classification (DDC) system, Sears List of Subject Headings 11 and Library of Congress Subject Headings (LCSH) . With these tools, excluding repeated or common subjects, twenty larger subjects, selected for the present work are AB and c respectively. The next step is to capture each of these terms and generate content through ChatGPT and check that content through three major plagiarism software for finding the similarity index. Finally, the similarity checking or plagiarism reports are analyzed through tables and findings and conclusions are drawn.