Which of the following is not organic compound?A.CH4CH 4​ B.CCl4CCl 4​ C.H2CO3H 2​ CO 3​ D.CH3−COOCH3CH 3​ −COOCH 3​

The compound that is not an organic compound among the options is B. CCl4.

Organic compounds are generally any chemical compounds that contain carbon-hydrogen bonds. Due to carbon's ability to catenate (form chains with other carbon atoms), millions of organic compounds are known.

Here's the step by step explanation:

A. CH4 (Methane) - It is an organic compound as it contains carbon-hydrogen bonds.

B. CCl4 (Carbon Tetrachloride) - It is not an organic compound as it does not contain any carbon-hydrogen bonds. It only contains carbon-chlorine bonds.

C. H2CO3 (Carbonic Acid) - It is an organic compound as it contains carbon-hydrogen bonds.

D. CH3−COOCH3 (Acetic Acid) - It is an organic compound as it contains carbon-hydrogen bonds.