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Coordination Compounds

Previous year questions with solutions · 2019 – 2026

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8Questions
6Papers covered
5.88%Weightage 2026▼ 5.9% vs last year
’24
’25
’26
Year-wise statistics questions · papers · average per paper · weightage
YearQuestionsPapersAvg / paperWeightage
20262215.88% ▼ 5.9% vs last year
20252216.25% ▼ 46.9% vs last year
202442211.76%

2 questions · newest paper first

Ques. 1JEE Advanced 2025 (Paper-1)

The correct order of the wavelength maxima of the absorption band in the ultraviolet-visible region for the given complexes is

  1. [Co(CN)6]3- < [Co(NH3)6]3+ < [Co(NH3)5(H2O)]3+ < [Co(NH3)5(Cl)]2+
  2. [Co(NH3)5(Cl)]2+ < [Co(NH3)5(H2O)]3+ < [Co(NH3)6]3+ < [Co(CN)6]3-
  3. [Co(CN)6]3- < [Co(NH3)5(Cl)]2+ < [Co(NH3)5(H2O)]3+ < [Co(NH3)6]3+
  4. [Co(NH3)6]3+ < [Co(CN)6]3- < [Co(NH3)5(Cl)]2+ < [Co(NH3)5(H2O)]3+
Ques. 2JEE Advanced 2025 (Paper-2)

The sum of the spin only magnetic moment values (in B.M.) of [Mn(Br)6]3- and [Mn(CN)6]3- is .