My major is chemistry. Will it affect my visa to the United States?

American visa officers are sensitive to chemistry, chemical engineering and other majors that may involve national security factors, and will ask more professional questions. So when you go to the visa, you must answer clearly to avoid being checked, but don't worry too much about being checked. Generally speaking, a check will be cashed within one month. The United States generally rejects two kinds of people, one is inclined to immigrate, and the other is that the English level is too poor for visa officers to understand. In addition, you can try to rank among female visa officers, because women are generally not interested in physics, chemical engineering and other majors, and may be better than male visa officers.