Total number of molecules/species from the following which will be paramagnetic is ………. \[ O_2, O_2^+, O_2^-, NO, NO_2, CO, K_2[NiCl_4], [Co(NH_3)_6]Cl_3, K_2[Ni(CN)_4] \]
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Molecular orbital theory helps determine paramagnetic behavior based on unpaired electrons.
A species exhibits paramagnetism when it possesses unpaired electrons. The following species are paramagnetic:
- \( O_2 \) ✅
- \( O_2^+ \) ✅
- \( O_2^- \) ✅
- \( NO \) ✅
- \( NO_2 \) ✅
- \( K_2[NiCl_4] \) ✅
The following species are diamagnetic:
- \( CO \) ❌
- \( [Co(NH_3)_6]Cl_3 \) ❌
- \( K_2[Ni(CN)_4] \) ❌
The total count of paramagnetic species identified is 5.
