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The electron which take part in order to...

The electron which take part in order to exhibit variable oxidation states by transition metals are

A

ns only

B

(n–1)d only

C

ns and (n–1)d only but not up

D

CuO + CaO

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Verified by Experts

The correct Answer is:
C
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MOTION-D-BLOCK ELEMENTS -Exercise III
  1. The electron which take part in order to exhibit variable oxidation st...

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  2. Bordeaux used a fungicide is a mixture of

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  3. Which of the following reaction is possible at anode ?

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  4. Colourless solutions of the following four salts are placed separately...

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  5. Peacock ore is:

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  6. “925 fine silver” means an alloy of :

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  7. The iron salt used in blue prints is :

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  8. Assertion: KMnO(4) is purple in colour due to charge transfer . Reas...

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  9. Assertion : K(2)CrO(4) has yellow colour due to charge transfer. Rea...

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  10. Statement-1: The highest oxidation state of chromium in its compound i...

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  11. Assertion : CrO(3) reacts with HCl to form chromyl chloride gas Reas...

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  12. Statement-1: Zinc does nt show characteristic properties of transition...

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  13. Assertion: Tungsten has very high melting point. Reason: Tungsten is...

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  14. Statement-1: Equivalent mass of KMnO(4) is equal to one-third of its m...

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  15. Assertion: Ce^(4+) is used as an oxidising agent in volumetric analysi...

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  16. Statement-1: Promethium is a man mae element. Statement-2: It is rad...

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  17. Statement-1: Cu^(+) ion is colourless. Statement-2: Four water molec...

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  18. Among d-block elements, the most abundant element belongs to the :

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  19. The 3d-metal ion are generally paramagnetic in nature because

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  20. Green vitriol is formed by :

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