All organic molecules contain the elements:
A)C, H, and N
B)C, H, and O
C)C, O, and N
D)H, O, and N

Question

Quizplus · Accepted Answer

Organic molecules are defined as molecules that contain carbon atoms covalently bonded to hydrogen atoms. The most common organic molecules are composed of carbon, hydrogen, and oxygen (choice B). While some organic molecules may contain nitrogen or other elements, they all contain carbon and hydrogen. Therefore, choice A is incorrect because not all organic molecules contain nitrogen, and choices C and D are incorrect because oxygen or nitrogen are not always present in organic molecules.

All Organic Molecules Contain the Elements