Even though disodium acetylide ($\ce{C2Na2}$) has carbon bonded with metal atoms and does not have a single carbon hydrogen bond in it, why is it considered as an organic compound? If this is an organic compound then why don't we call $\ce{CO2}$ an organic because it can also be produced from reacting organic compounds?

  • $\begingroup$ Organic compounds are those which are studied in the departments of organic chemistry for historical reasons. There is no deeper meaning behind that. $\endgroup$ – Ivan Neretin Mar 7 '17 at 8:48
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    $\begingroup$ From Clayden's Organic Chemistry, chapter 1, page 12: "So where does inorganic chemistry end and organic chemistry begin? ... The answer is that we don’t know and we don’t care." $\endgroup$ – Don_S Mar 7 '17 at 9:06

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