Among [Ni(CO)₄], [NiCl₄]²⁻, [ Co(NH₃)₄Cl₂ ]Cl, Na₃[CoF₆], Na₂O₂ and CsO₂ number of paramagnetic compounds is

Unclassified (chemistry): JEE Advanced 2016 Chemistry question

JEE Advanced 2016 · JEE Adv 2016 Paper 1, Paper 1 · Q22

JEE Advanced 2016JEE Adv 2016 Paper 1, Paper 1ChemistryHardUnclassified (chemistry)

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

JEE Advanced 2016 · JEE Adv 2016 Paper 1, Paper 1 · Q22

JEE Advanced 2016JEE Adv 2016 Paper 1, Paper 1ChemistryHardUnclassified (chemistry)

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