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Neutral oxides, are non metal oxides which are neither acidic nor basic. I have noticed a pattern for neutral oxides which I am unsure actually holds true.

$\ce{CO}$, $\ce{H2O}$, $\ce{NO}$ and $\ce{N2O}$ are examples of neutral oxides. It seems that neutral oxides will always have 1 oxygen atom. While non metal oxides with more than 1 oxygen atom seems to always be acidic oxide. ($\ce{CO2}$, $\ce{SO3}$, $\ce{SO2}$ and $\ce{P4O10}$).

Is this a coincidence? Are there any neutral oxides with more than one oxygen atom?

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    $\begingroup$ This is just a coincidence. Besides, H2O is not neutral; it is both acidic and basic, which might seem to be the same, but in fact is quite different. $\endgroup$ – Ivan Neretin Feb 14 at 12:31
  • $\begingroup$ And, $\ce{NO}$ is not just $\ce{NO}$. It will contain a little dimer, $\ce{N2O2}$, which is still neutral. $\endgroup$ – Oscar Lanzi Feb 14 at 13:37
  • $\begingroup$ Hmm, Since N2O2 is a neutral oxide, then it disproves the "all neutral oxides have 1 oxygen atom". However, the empirical formula of N2O2 is NO. Is C2O2 and N4O2 neutral also? If they are neutral also, maybe the empirical formula of a neutral oxide will always have oxygen with a ratio of 1 to the other components. $\endgroup$ – Bryan Foong Zhi Chuan Feb 14 at 14:41
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    $\begingroup$ Do not get hung up on this. $\ce{Cl2O}$ is acidic. $\endgroup$ – Oscar Lanzi Feb 14 at 14:50
  • $\begingroup$ chemistry.stackexchange.com/questions/69707/… $\endgroup$ – Nilay Ghosh Feb 14 at 15:47
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Cl2O has one oxygen atom and is an acidic oxide. Thus, not all non metal oxides with one oxygen atom are neutral oxide. Also, not all neutral oxides have only one oxygen atom. N2O2, a neutral oxide but has more than one oxygen atom.

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