Chemistry - Coordination Chemistry Question with Solution | TestHub
ChemistryCoordination ChemistryIUPAC namingMedium2 minQB
ChemistryMediumsingle choice
Passage / Comprehension
The coordination number of Ni²⁺ is 4.
NiCl₂ + KCN (excess) → A (cyano complex)
NiCl₂ + KCl (excess) → B (chloro complex)
The IUPAC name of and are
Options:
Answer:
A
Solution:
Ni²⁺ has coordination number 4, so it forms tetrahedral/square planar complexes with ligands CN⁻ and Cl⁻.
With excess KCN:
A = → potassium salt is K₂[Ni(CN)₄], named potassium tetracyanidonickelate(II).
With excess KCl:
B = → potassium salt is K₂[NiCl₄], named potassium tetrachloridonickelate(II).
So the correct option is (a).
Stream:JEESubject:ChemistryTopic:Coordination ChemistrySubtopic:IUPAC naming
⏱ 2mℹ️ Source: QB
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