# An organic compound contains only the elements carbon, hydrogen, and oxygen. Could this compound be a carbohydrate? Could it be a protein?

Dec 8, 2016

Yes, it could be a carbohydrate
No, it can not be a protein.

#### Explanation:

A carbohydrate has only Carbon, Hydrogen and Oxygen, with the hydrogen and oxygen in the ratio 2:1.
Examples are glucose ${C}_{6} {H}_{12} {O}_{6}$ and table sugar ${C}_{12} {H}_{22} {O}_{11}$

A protein is made of amino acids. Amino acids have an amino group which is $- N {H}_{2}$.
So without nitrogen atoms the compound can not be a protein.