Which of the following is correct about Tetraamminedithiocyanato-s cobalt (III) tris (oxalato)cobaltate (III)?

Engineering

Chemistry

Isomerism in Coordination Compounds

Question

Which of the following is correct about Tetraamminedithiocyanato-s cobalt (III) tris (oxalato)cobaltate (III)?

A

Formula of complex is [Co(SCN)₂(NH₃)₄][Co(ox)₃]

B

It is a chelating complex and show linkage isomerism

C

It show optical isomerism

D

It show geometrical isomerism

LiveFree JEE Main Previous Year Online Papers Live Free JEE Advance Previous Year Online Papers

JEE Advance

College PredictorLive

Know your College Admission Chances Based on your Rank/Percentile, Category and Home State.

Get your JEE Main Personalised Report with Top Predicted Colleges in JoSA

A) The formula of the complex Tetraamminedithiocyanato-s cobalt (III) tris(oxalato)cobaltate (III) is [Co^III(SCN)₂(NH₃)₄]₃[Co^III(ox)₃] and not [Co(SCN)₂(NH₃)₄][Co(ox)₃] because to balance the charge,three units of complex cation and one unit of complex anion are present in one formula unit.

Thus option A is incorrect.

(B) Linkage isomerism is possible as SCN ligand is ambidentate ligand and has two donor atoms N and S.

Thus option B is correct.

(C) The complex ion [Co(ox)₃]³⁻ has elements of asymmetry and is optically active. Thus option C is correct.

(D) The complex cation [Co(SCN)₂(NH₃)₄]⁺¹ shows geometrical isomerism.

Thus option D is correct.

Lock Image

Please subscribe our Youtube channel to unlock this solution.