1. Which of the following is the most appropriate definition of organic compound?

A. a compound that is synthesized by living organisms

B. a compound that is used by living organisms

C. a compound that contains carbon atoms bound to other elements

D. a solid, liquid, or gaseous compound that is found in living organisms

A compound that contains carbon atoms bound to other elements. (Ans. C)

Explanation:

Organic compounds: Organic compounds are large class of chemical compounds where one or more atoms of carbon covalently bound to the other elements such as carbon, hydrogen and oxygen which are needed for function of living organisms.

Carbon is the key element of organic compounds because it has 4 electrons in an outer electron shell which can hold 8 electrons. As it can form many types of bonds with other carbon atoms and other elements such as nitrogen, hydrogen and oxygen.

Proteins and hydrocarbons are good example of organic compounds which can form long chain and complex structure.

the Answer is A

because organic compound is made up of living things