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The ions from among the following which ...

The ions from among the following which are colourless are `:`
`(i)Ti^(+4)" "(ii)Cu^(+1)" "(iii)Co^(+3)" "(iv)Fe^(+2)`

A

`(i)` and `(ii)` only

B

`(i),(ii)` and `(iii)`

C

`(iii)` and `(iv)` only

D

`(ii)` and `(iii)` only

Text Solution

Verified by Experts

The correct Answer is:
1
Colors of transition metal ion is shown due to `d-d` transition.
`Ti^(+4)(3d^(@))` and `Cu^(+1)(3d^(10))` are colourless
`Co^(+3)(3d^(6))` and `Fe^(+2)(3d^(@))` are colourless ions.
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RESONANCE-D & F BLOCK ELEMENTS-INORGANIC CHEMISTRY(d & f- Block Elments)
  1. Which of the following statements is true for transition elements ?

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  2. Among the following series of transition metal ions the one where all ...

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  3. The ions from among the following which are colourless are : (i)Ti^(...

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  4. Which of the following ions has the maximum magnetic moment in aqueous...

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  5. Among the following outermost configurations of transitionn metals, wh...

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  6. The maximum oxidation state shown by V(Z=23),Cr(Z=24),Co(Z=27),Sc(Z=21...

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  7. Transition elements are used as catalyst because :

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  8. The yellow colour of chromates changes to orange on acidification due ...

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  9. The number of mole of KMnO(4) that will be needed to react completely ...

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  10. Which one of the following compounds does not decolourise an acidified...

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  11. When MnO2 is fused woth KOH, a coloured compound is formed, the produc...

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  12. The basic character of the transition metal monoxide follows the order

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  13. Which of the following reactions represents " developing"in photograph...

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  14. Which of the following ions are colourless in the aqueous solutions ?

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  15. Which of the following factor may be regarded as the main cause of lan...

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  16. Why does ZnO show increased electrical conductivity and turns yellow o...

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  17. Which of the following is arranged in order of incresing melting point...

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  18. In which of the following reaction "Philosopher's wool" is formed

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  19. CrO3 dissolves in aqueous NaOH to give

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  20. Mercury on heating with aqua regia gives

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