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In the separation of Cu^(2+) and Cd^(2+)...

In the separation of `Cu^(2+)` and `Cd^(2+)` in 2nd group qualitiative analysis of cations, tetrammine copper (II) sulphate and tetrammine cadmium (II) sulphate react with KCN to form the corresponding cyano complexes. Which one of the following pairs of the complexes and their relaive stability enalbles the separation of `Cu^(2+)` ad `Cd^(2+)` ?

A

`K_2[Cu(CN)_4]` more stable and `K_2[Cd(CN)_4]` less stable

B

`K_2[Cu(CN)_4]` less stable and `K_2[Cd(CN)_4]` more stable

C

`K_2[Cu(CN)_4]` more stable and `K_2[Cd(CN)_4]` less stable

D

`K_2[Cu(CN)_4]` less stable and `K_2[Cd(CN)_4]` more stable

Text Solution

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The correct Answer is:
A
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AAKASH SERIES-COMPLEX COMPOUNDS -Objective Exercise-2
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  11. Tetraaminecopper (II) ion is square planar complex with one unpaired e...

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  12. Which of the following shall form an octahedral complex ?

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  13. Which of the following species represent the example of dsp hybridizat...

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  15. Which of the following set is incorrect ?

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  18. Which of the following complexes is an outer orbital complex?

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