I. The similarity index varies across different subjects in chemistry. Some subjects show a higher similarity index, indicating more matching content, while others exhibit lower similarity, indicating less similarity with existing sources. II. Among the subjects analyzed, organic chemistry shows the highest similarity index across all three plagiarism checker software, with iThenticate reporting 7 matching paragraphs, Urkund reporting 1 matching paragraph, and Turnitin reporting 2 matching paragraphs. III. Microchemistry, mineralogy, and theoretical chemistry show the lowest similarity index across all three-plagiarism checker software, with either no matching paragraphs or a minimal number of matching paragraphs. IV. There is variation in the results obtained from different plagiarism checker software. For example, iThenticate often reports a higher number of matching paragraphs compared to Urkund and Turnitin for many subjects. V.