Distinguish between organic and inorganic molecules?

1 Answer
Jan 31, 2018

See the explanation below.

Explanation:

Organic molecules are molecules that contain carbon-hydrogen bonds. Almost all organic molecules are hydrocarbons. They are called organic because they are essential for life to exist.

Some examples of organic molecules include:

Methane #(CH_4)#

Glucose #(C_6H_12O_6)#

Ethanol #(C_2H_5OH)# or #(C_2H_6O)#

Here is a picture of some more:

http://www.compoundchem.com/2014/09/01/benzene-derivatives-in-organic-chemistry/

As you can see here, all of them contain carbon and hydrogen in their chemical structure.

I think you can guess then what are inorganic molecules. Well, they are molecules without carbon-hydrogen bonds. While they still can contain carbon compounds, such as #(CO_2)#, or hydrogen compounds, such as #(H_2O)#, they are not allowed to have carbon-hydrogen bonds, so molecules like #(C_2H_6)# are not considered inorganic.

However, some are still essential for life, such as

Water #(H_2O)#

Oxygen gas #(O_2)#

But mainly, some can be quite common compounds, with examples like

Rust #(Fe_2O_3*nH_2O)#

Table salt #(NaCl)#

Hydrochloric acid #(HCl)#

Here are pictures of the compounds I've mentioned above:

http://www.fieldstation.net/tag/rust/ Rust

https://www.flickr.com/photos/11939863@N08/3793288383/in/photostream/ Salt

https://www.amazon.com/Hydrochloric-Reagent-Grade-Purity-Regia/dp/B00HWFHMP2 Hydrochloric acid

I hope my explanation was clear!