Coordination CompoundHard
Question
Which of the following complexes produces three moles of silver chloride when its one mole is treated with excess of silver nitrate ?
Options
A.[Cr(H2O)3Cl3]
B.[Cr(H2O)4Cl2]Cl
C.[Cr(H2O)5Cl]Cl2
D.[Cr(H2O)6]Cl3
Solution
(D) [Cr(H2O)6]Cl3 
[Cr(H2O)6]3+ (aq) + 3Cl- (aq).
Cl- present in ionisation sphere will give precipitate with AgNO3.
3Cl- + 3Ag+ → 3AgCl
So, one mole of complex will give three moles of AgCl precipitate.
[Cr(H2O)6]3+ (aq) + 3Cl- (aq).Cl- present in ionisation sphere will give precipitate with AgNO3.
3Cl- + 3Ag+ → 3AgCl
So, one mole of complex will give three moles of AgCl precipitate.
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