Answer: The correct answer is Carbon monoxide (CO) and Glucose (C6H12O6).
A compound is substance, which is formed by two or more chemical elements bonded together in the fixed ratio.
Carbon monoxide is made from Carbon and oxygen. Similarly, glucose is made by three elements that is Carbon, hydrogen, and oxygen.
On the contrary, neon, cobalt, and fluorine are made up of single elements. Therefore, they are not compounds.
Thus, Carbon monoxide (CO) and glucose (C6H12O6) both are compounds.
