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General — Medium JEE chemistry MCQ

Among $[\mathrm{Ni(CO)}_{4}]$, $[\mathrm{NiCl}_{4}]^{2-}$, $[\mathrm{Co(NH_3)_{4}Cl_2}]\mathrm{Cl}$, $\mathrm{Na_3}[\mathrm{CoF_6}]$, $\mathrm{Na_2O_2}$ and $\mathrm{CsO_2}$ number of paramagnetic compounds is
  1. A. 2
  2. B. 3
  3. C. 4
  4. D. 5

Solution

The correct option is **B**.

CHEMISTRY

medium • PYQ Reworded
Question
Read carefully, then pick the best option.
Among [Ni(CO)4][\mathrm{Ni(CO)}_{4}], [NiCl4]2−[\mathrm{NiCl}_{4}]^{2-}, [Co(NH3)4Cl2]Cl[\mathrm{Co(NH_3)_{4}Cl_2}]\mathrm{Cl}, Na3[CoF6]\mathrm{Na_3}[\mathrm{CoF_6}], Na2O2\mathrm{Na_2O_2} and CsO2\mathrm{CsO_2} number of paramagnetic compounds is
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General — Medium JEE Chemistry MCQ | MyGoalPrep