Question

organic chemistry is the study of compounds containing
a) carbon.

b) nitrogen.

c) hydrogen.

d) ovvoen

Explanation:

Organic chemistry is defined as the study of compounds that contain carbon (along with other elements like hydrogen, oxygen, nitrogen, etc. in many cases, but the defining element is carbon). Nitrogen, hydrogen, and oxygen (assuming D is oxygen, though misspelled) are common in organic compounds but not the defining element for organic chemistry. So the correct option is A.

Answer:

A) carbon.