Total number of unpaired electrons present in the central metal atoms/ions of [Ni(CO)₄], [NiCl₄]²⁻, [PtCl₂(NH₃)₂], [Ni(CN)₄]²⁻ and [Pt(CN)₄]²⁻ is _ _ _ _.

Coordination Compounds: JEE Main 2026 Chemistry question

JEE Main 2026 · 23 Jan, Evening shift · Q74

JEE Main 202623 Jan, Evening shiftChemistryMediumCoordination Compounds198× since 2002

Total number of unpaired electrons present in the central metal atoms/ions of

\mathrm{[Ni(CO)_4]}

\mathrm{[NiCl_4]^{2-}}

\mathrm{[PtCl_2(NH_3)_2]}

\mathrm{[Ni(CN)_4]^{2-}}

and

\mathrm{[Pt(CN)_4]^{2-}}

is _______.

Your answerType your answer. Integers and decimals are accepted.

JEE Main 2026 Coordination Compounds Question with Solution (23 Jan Evening shift, Q74) | JEE Arc

JEE Main 2026 · 23 Jan, Evening shift · Q74

JEE Main 202623 Jan, Evening shiftChemistryMediumCoordination Compounds198× since 2002

Total number of unpaired electrons present in the central metal atoms/ions of

\mathrm{[Ni(CO)_4]}

\mathrm{[NiCl_4]^{2-}}

\mathrm{[PtCl_2(NH_3)_2]}

\mathrm{[Ni(CN)_4]^{2-}}

and

\mathrm{[Pt(CN)_4]^{2-}}

is _______.

Your answerType your answer. Integers and decimals are accepted.