The number of isoelectronic species among Sc³⁺, Cr²⁺, Mn³⁺, Co³⁺ and Fe³⁺ is 'n'. If 'n' moles of AgCl is formed during the reaction of complex with formula CoCl₃(en)₂NH₃ with excess of AgNO₃ solution, then the number of electrons present in the t 2g orbital of the complex is _ _ _ _.

Coordination Compounds: JEE Main 2026 Chemistry question

JEE Main 2026 · 28 Jan, Evening shift · Q75

JEE Main 202628 Jan, Evening shiftChemistryHardCoordination Compounds198× since 2002

The number of isoelectronic species among

\mathrm{Sc^{3+}}

\mathrm{Cr^{2+}}

\mathrm{Mn^{3+}}

\mathrm{Co^{3+}}

and

\mathrm{Fe^{3+}}

is 'n'. If 'n' moles of AgCl is formed during the reaction of complex with formula

\mathrm{CoCl_3(en)_2NH_3}

with excess of

\mathrm{AgNO_3}

solution, then the number of electrons present in the

t_{2g}

orbital of the complex is ________.

Your answerType your answer. Integers and decimals are accepted.

JEE Main 2026 Coordination Compounds Question with Solution (28 Jan Evening shift, Q75) | JEE Arc