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Which group contains coloured ions out o...

Which group contains coloured ions out of the following ?
1. `Cu^+` 2. `Ti^(4+)` 3. `Co^(2+)` 4. `Fe^(2+)`

A

1,2,3,4

B

3,4

C

2,3

D

1,2

Text Solution

Verified by Experts

The correct Answer is:
B
Colour of trasition elements are due to presence of unpaired electrons.
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NCERT FINGERTIPS-THE D- AND F- BLOCK ELEMENTS -General Properties Of The Transition Elements
  1. Which of the following transition metal ions has highest magnetic mome...

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  2. Select the correct option, among Sc(III) , Ti(IV), Pd(II) and Cu(II) i...

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  3. The correct order of the number of unpaired electrons in the ions Cu^(...

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  4. Calculate the magnetic moment of a divalent ion in aqueous solution if...

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  5. Arrange the following in increasing value of magnetic moments. (i) ...

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  6. Which of the following statements is not correct about magnetic behav...

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  7. The number of unpaired electrons in gaseous species of Mn^(3+), Cr^(3+...

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  8. Which of the following arrangements represent the correct order of the...

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  9. Match the column I with column II and mark the appropriate choice.

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  10. Which of the following transition metal ions is colourless ?

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  11. Amongst TiF6^(2-), CoF6^(3-), Cu2Cl2" and " NiCl4^(2-), which are the ...

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  12. Which of the following compounds is not coloured ?

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  13. Compound that is both paramagnetic and coloured is:

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  14. Most of the transition metals exhibit (i) paramagnetic behaviour ...

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  15. For Zn^(2), Ni^(2+), Cu^(2+) and Cr^(2+) which of the following statem...

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  16. Colour of transition metal ions are due to absorption of some waveleng...

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  17. Which group contains coloured ions out of the following ? 1. Cu^+ ...

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  18. Transition metals make the most efficient catalysts because of their a...

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  19. Interstitial compounds are

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  20. Transition elements form binary compounds with halogens. Which of the ...

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