Question

Which of the following is an organic molecule

A) oxygen gas
B) sucrose
C) iron oxide
D) water

Answer 1

Answer: sucrose

Step-by-step explanation:

The answer is sucrose because it contains carbohydrates which are biological that contain carbon hydrogen and oxygen. It is composed of two monosaccharides which are glucose and fructose. Sucrose is commonly found among plants where it is extracted and refined from sugarcane.

Answer 2

Answer: Option B - Sucrose

Explanation: Any compound containing carbon atoms covalently bound to other atoms is referred to as an ORGANIC COMPOUND or MOLECULE.

From the options provided, Oxygen gas (O2) does not have any carbon atom, so it is not an organic molecule; so also iron oxide (Fe2O3) and water (H2O).

Sucrose, however, with formula C12H22O11, consists of 12 carbon atoms bound to 22 hydrogen atoms, and 11 oxygen atoms.

So, Sucrose is the right answer.