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Aqueous solution of Fe SO4 gives tests f...

Aqueous solution of `Fe SO_4` gives tests for both `Fe^(2+) and SO_4^(2-)` but after addition of excess of KCN, solution ceases to give test for `Fe^(2+)` . This is due to the formation of:

A

the double salt `FeSO_4.2KCN.6H_2O`

B

`Fe(CN)_3`

C

the complex ion `[Fe(CN)_6]^(4-)`

D

the complex ion `[Fe(CN)_6]^(3-)`

Text Solution

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The correct Answer is:
B
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MOTION-COORDINATION COMPOUND-EXERCISE -2 (LEVEL I) OBJECTIVE PROBLEMS JEE MAIN
  1. Complexes [Co(SO(4))(NH(3))(5)]Br and [CoBr(NH(3))(5)]SO(4) can be dis...

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  2. Which of the following has conductance approximately equal to that of ...

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  3. Aqueous solution of Fe SO4 gives tests for both Fe^(2+) and SO4^(2-) b...

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  4. The species with spin only magnetic moment of sqrt(24) BM is:

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  5. The formula of the complex hyderidotrimethoxoborate (III) ion is:

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  6. Which of the following has an optical isomer?

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  7. Trioxalato aluminate (III) and tetrafluoro-borate (III) ions are:

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  8. In which complex is the transition metal in zero oxidation state:

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  9. The IUPAC name for the coordination compound Ba[BrF4]2 is:

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  10. The complexes given below show : " and "

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  11. For the complex ion dichloro bis (ethylene diamine) cobalt (III), sele...

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  12. Type of isomerism exhibited by [Ir(OCN)2(H2O)3]

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  13. Which of the following complex exhibits geometrical isomerism

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  14. The total number possible isomers for the complex compound [Cu^(II)(NH...

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  15. Which complex is likely to show optical activity :

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  16. [Co(NH3)5Br]SO4 and [Co(NH3)5SO4]Br are the examples of:

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  17. Which of the following is non-ionizable-

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  18. [Cu(NH3)4]^(2+) has hybridisation and magnetic moment

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  19. Which of the following statements is incorrect?

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  20. The number of geometrical isomers for octahedral [CoCl(4)(NH(3))(2)]^(...

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