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Colour in transition metal compounds in ...

Colour in transition metal compounds in attributed to

A

exceptionally small size of cations

B

absorption of ultraviolet rays

C

incomplete (n-1) d-subshell

D

absorption of infrared radiations

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The correct Answer is:
C
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RESONANCE ENGLISH-D & F-BLOCK ELEMENTS & THEIR IMPORTANT COMPOUNDS -Exercise 1
  1. Magnetic moment of Cr^(+2)(Z=24),Mn^(+2)(Z=25) and Fe^(2+) (Z=26) are ...

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  2. Spin only magnetic moment of .(25)Mn^(x+)ion is sqrt(15) B.M. Then, t...

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  3. Colour in transition metal compounds in attributed to

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  4. MnO(4)^(-) is of intense pink colour, though Mn is in (+7) oxidation s...

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

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  6. The catalytic activity of transition metals and their compounds is asc...

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  7. KMnO(4) is the oxo salt of :

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  8. The solubility of silver bromide in hypo solution (excess) is due to ...

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  9. In dilute alkaline solution,MnO(4)^(-) changes to:

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  10. Cl(2) gas is obtained by various reactions but not by:

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  11. The developer used in photography is an alkaline solution of:

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  12. When acidified solution of K(2)Cr(2)O(7) is shaken with aqeous solutio...

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  13. Which of the following compounds is used as the starting material for ...

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  14. CrO(4) dissolves in aqueous NaOH to give :

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  15. The final product obtained for the following reaction is: KMnO(4)("ex...

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  16. The f-block of the periodic table contains those elements in which:

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  17. Among the lanthanides the one obtained by synthetic method is (a)Lu ...

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  18. The most common lanthanoid is

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  19. Across the lanthanide series,the basicity of the lanthanoide hydroxide...

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  20. Actinides

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