The first people who started recording the results of chemical experiments were the ancient Greeks. Ancient Greek scientists came up with the concept of "the elements" and they came up with some early models of the atom. Naturally, they didn't have the technology available to get it all correct, but they laid the foundations. If you want to clear your chemistry exam then you can take the best O level chemistry tuition in Singapore.
For some students, it's clear why chemistry is a requirement. Nursing students, medical students, most engineers, and those majoring in the sciences need to know the fundamentals of chemistry.
Some students need to have an extensive education in chemistry to satisfy their graduation requirements.
But even a literature major can benefit from the study of chemistry. It is one of the fundamental sciences, and it can improve anyone's scientific literacy, which is good whether you're dissecting Shakespeare's plays or the structure of a new drug.
Chemical studies academic discipline teaches you, and after you complete the course, you have a very real sense of having accomplished something.
The analytical skills and the patience you learn from taking a chemistry class will benefit you no matter your course of study. And there have been lots of students who initially dread chemistry only to find out that they really enjoy it.