Organic chemistry is the branch of chemistry that studies Cloze (1): JXUwMDNiJXUwMDAyJXUwMDEzJXUwMDEwJXUwMDBkJXUwMDAx compounds present in living things, once living things or synthetic/man-made. Compounds that makes up Cloze (2): JXUwMDM0JXUwMDA1JXUwMDFmJXUwMDFmJXUwMDA3JXUwMDA5 things whether alive or dead mainly contain carbon. Carbon is tetravalent.

 It is able to form stable Cloze (3): JXUwMDNiJXUwMDBjJXUwMDE5JXUwMDE3JXUwMDBkJXUwMDA5JXUwMDBiJXUwMDFh bonds with itself and many non-metals like hydrogen, nitrogen , Oxygen and halogens to form a variety of compounds

Cloze (4): JXUwMDEwJXUwMDMxJXUwMDFkJXUwMDE2JXUwMDFkJXUwMDBjJXUwMDAyJXUwMDEzJXUwMDEwJXUw MDBkJXUwMDAxJXUwMDFk are a group of organic compounds containing /made up of hydrogen and carbon atoms only.