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Assertion: [Cu(CN)4]^(2-) is more stable...

Assertion: `[Cu(CN)_4]^(2-)` is more stable than `[Cu(H_2O)_4]^(2+)`
Reason: On heating `[Cu(H_2O)_4]^(2+)` with `NH_3, [Cu(NH_3)_4]^(2+)` is formed.

A

Both Assertion & Reason are true ,Reason is the correct explanation of Assertion

B

Both Assertion & Reason are true, Reason is not correct explanation of Assertion

C

Assertion is true , Reason is false

D

Assertion is false , Reason is false

Text Solution

Verified by Experts

The correct Answer is:
B
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AAKASH SERIES-COMPLEX COMPOUNDS -Objective Exercise-4
  1. Assertion: Complexes containing ambidentate ligands exhibit co-ordinat...

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  2. Assertion: The complex [Co(NH3)3Cl3] gives no precipitate with AgNO3 s...

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  3. Assertion: [Cu(CN)4]^(2-) is more stable than [Cu(H2O)4]^(2+) Reason...

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  4. (A): [Fe(edta)] complex is octahedral in shape (R): edta ligand is ...

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  5. Assertion:Ni(CO)4 complex is tetrahedral in shape Reason: Ni atom u...

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  6. (A): All square planar complexes can exhibit geometrical isomerism (...

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  7. Assertion: (Ph3P)3RhCl is Wilkinson's catalyst. Reason: (Ph3P)3RhCl ...

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  8. Assertion: Willkinson's catalyst contains Ti^(4+) as the metal cation ...

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  9. Assertion: Optical isomerism is not shown by square planar complexes. ...

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  10. Assertion: [Cu(en)2]^(2+) is more stable than [Cu(NH3)4]^(2+) Reason...

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  11. Assertion: The ligands nitro and nitrito are called ambidentate ligand...

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  12. Assertion: The total number of isomers shown by [Co(en)2Cl2]^(+) compl...

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  13. Assertion: Number of unpaired electrons present in [Cu(NH3)2](+) comp...

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  14. Assertion: The number of unpaired electrons in Ni(CO)4 complex is zero...

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  15. Assertion: The coordination entity of the type [PtCl2(en)2]^(+2) show...

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  16. Assertion: The spin only magnetic moment of [MnBr4]^(2-) is 5.9 BM ...

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  17. Assertion: [Fe(CN)6]^(3-) is weakly paramagnetic while [Fe(CN)6]^(4-)...

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  18. Assertion:In a complex prefixes cis- and trans - are used to designate...

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  19. Assertion: The geometrical isomers of the complex [M(NH3)4Cl2] are opt...

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  20. Assertion: The number of unpaired electrons present in [CuCl2]^(-) co...

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