JEE Mains · Chemistry · STD 11 - 4. Chemical bonding and molecular structure
The total number of species from the following in which one unpaired electron is present is _______.
[\(\mathrm{N}_2, \mathrm{O}_2, \mathrm{C}_2^{-}, \mathrm{O}_2^{-}, \mathrm{O}_2^{2-}, \mathrm{H}_2^{+}, \mathrm{CN}^{-}, \mathrm{He}_2^{+}\)]
- A \(2\)
- B \(3\)
- C \(4\)
- D \(8\)
Answer & Solution
Correct Answer
(C) \(4\)
Step-by-step Solution
Detailed explanation
One unpaired \(\mathrm{e}^{-}\)is present in : \(\mathrm{C}_2^{-} ; \mathrm{O}_2^{-} ; \mathrm{H}_2^{+} ; \mathrm{He}_2^{+}\)
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