Chemistry - Coordination Chemistry Question with Solution | TestHub

ChemistryCoordination ChemistryMiscellaneous/MixedEasy2 minPYQ_2020
ChemistryEasysingle choice

Which one is the most likely structure of CrCl3.6H2O, if 1/3 of total chlorine of the compound is precipitated by adding AgNO3to its aqueous solution?

Options:

Answer:
C
Solution:

CrCl 3 · 6 H 2 O has 3−Cl atoms but 1 3 Cl atoms precipitated so one 1 Cl atom get precipitated.

According to Werner's theory, only those ions are precipitated which are attached to the metal atoms with ionic bonds and are present outside the co-ordination sphere.

Cr H 2 O 4 Cl 2 Cl (aq)⇌    Cr H 2 O 4 Cl 2 + aq + Cl − aq

  Ag++Cl- ⟶AgCl ↓white

Stream:NTA_ABHYASSubject:ChemistryTopic:Coordination ChemistrySubtopic:Miscellaneous/Mixed
⏱ 2mℹ️ Source: PYQ_2020

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