Chemistry - Coordination Chemistry Question with Solution | TestHub

ChemistryCoordination ChemistryWerner theory + calculation of EANMedium2 minQB

ChemistryMediumsingle choice

Passage / Comprehension

Werner was able to explain the nature of bonding in complex , and he concluded that in complex the metal show two different valency

(1) Primary valency

(2) Secondary valency

Which of the following statement is incorrect regarding $Co (Br) (Cl) (I) .4 NH_{3}$ .

Answer:

Solution:

The complex is $[Co (NH_{3})_{4} BrCl] I$ .

A. Ionization isomers are possible by exchanging $I^{-}$ with $Br^{-}$ or $Cl^{-}$ .

B. One isomer is $[Co (NH_{3})_{4} BrCl] I$ , named tetraamminebromidochloridocobalt(III) iodide.

C. Primary valency (oxidation state) of Co is $+ 3$ .

D. Secondary valency (coordination number) is 6, satisfied by four $NH_{3}$ and two halide ligands. So, the statement is incorrect.

Stream:JEESubject:ChemistryTopic:Coordination ChemistrySubtopic:Werner theory + calculation of EAN

⏱ 2mℹ️ Source: QB

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