Which of the following is not an organic molecule; methane (ch4), fructose (c6h12o6), rosane (c20h36), or ammonia (nh3)? how do you know?

The correct answer is

Explanation:

An organic compound is defined as the compound which is found in living organisms.

These compounds mainly consists of carbon atoms which are covalently bonded to hydrogen, oxygen and nitrogen atoms.

For the given options:

Option 1:  

In the given compound, carbon is covalently bonded to hydrogen atoms. Thus, it is an organic compound.

Option 2:  

In the given compound, carbon is covalently bonded to hydrogen and oxygen atoms. Thus, it is an organic compound.

Option 3:  

In the given compound, carbon is covalently bonded to hydrogen atoms. Thus, it is an organic compound.

Option 4:  

In the given compound, nitrogen is covalently bonded to hydrogen atoms and no carbon atom is present. Thus, it is not an organic compound.

Hence, the correct answer is

i do not get it   at all