Answer: CH means that Methylidyne radical. It is a chemical formula in chemistry.

What CH means?

Ch. is a written abbreviation for chapter.

What is science answer in short?

Science is the study of the nature and behaviour of natural things and the knowledge that we obtain about them. ... A science is a particular branch of science such as physics, chemistry, or biology. Physics is the best example of a science which has developed strong, abstract theories.