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Chemistry · 2013
JEE Main 2013 · 2013-04-07 Offline · Q76
In which of the following pairs of molecules/ions, both the species are not likely to exist?
In which of the following pairs of molecules/ions, both the species are not likely to exist ?
Official answer
(4)
$\displaystyle \mathrm{H}_2^{2+}, \mathrm{He}_2$
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