Home
Class 12
CHEMISTRY
FeSO4 solution mixed with (NH4)2SO4 solu...

`FeSO_4` solution mixed with `(NH_4)_2SO_4` solution is `1:1` molar ratio gives the test of `Fe^(2+)` ion but `CuSO_4` solution mixed with aqueous ammonia in `1:4` molar ratio does not give the test of `Cu^(2+)` ion. Explain why?

Text Solution

Verified by Experts

`FeSO_(4)` does not form any complex with `(NH_(4))_(2)SO_(4)` instead , they form a double salt `FeSO_(4)(NH_(4))_(2)sO_(4)6H_(2)O` which dissociates completely into ions but `CuSO_(4)` combines with NH to form the complex `[Cu(NH_(3))_(4)]SO_(4)` in which complex ion , `[Cu(NH_(3))_(4)]^(2+)` does not dissociate to give `Cu^(2+)` ions.
Promotional Banner

Topper's Solved these Questions

  • COORDINATION COMPOUNDS

    AAKASH INSTITUTE|Exercise Assignment (Section-J Aakash Challenger Questions )|10 Videos

  • COORDINATION COMPOUNDS

    AAKASH INSTITUTE|Exercise Assignment (Section-H Multiple True-False Type Questions )|5 Videos

  • CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

    AAKASH INSTITUTE|Exercise Assignment (Section - J Aakash Challengers Questions)|6 Videos

  • ELECTROCHEMISTRY

    AAKASH INSTITUTE|Exercise Assignment (SECTION - J) (Aakash Challengers Questions)|10 Videos

Similar Questions

Explore conceptually related problems

KI and CuSO_4 solutions when mixed give

KI and CuSO_4 solution when mixed give .

Cu^(2+) ions with NH_(4)OH solution gives

Consider the following experiments and answer the questions at the end of it (A) When Fe(CN)_(2) solution is treated with KCN solution species formed no longer gives tests of Fe^(2+) and CN^(Θ) (B) When K_(2)SO_(4) solution is treated with A1_(2)(SO_(4))_(3) solution species formed gives tests of K^(o+),A1^(3+) and SO_(4)^(2-) Species formed in experiment A does not give test of Fe^(2+) and CN^(Θ) it is due to formation of .

Consider the following experiments and answer the questions at the end of it (A) When Fe(CN)_(2) solution is treated with KCN solution species formed no longer gives tests of Fe^(2+) and CN^(Θ) (B) When K_(2)SO_(4) solution is treated with A1_(2)(SO_(4))_(3) solution species formed gives tests of K^(o+) ,A1^(3+) and SO_(4)^(2-) When the species formed in A is treated with FeCI_(3) a bule colour is obtained It is due to formation of .