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Transition elements act as catalyst beca...

Transition elements act as catalyst because-

A

Their melting points are higher

B

Their `I.P.` values are higher

C

They have high density

D

They can show variable oxidation states

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The correct Answer is:
D
Transition elements act as catalyst they can show variablle oxidationstates states.
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BANSAL-D AND F BLOCK ELEMENTS-Exercise-1 (Single Correct Choice Type)
  1. The ion pair of the following in which both the ions have unpaired ele...

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  2. What happen when a solution of potassium chromate is treated with an e...

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  3. Transition elements act as catalyst because-

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  4. The radius of La^(+) (at no 57) is 1.06Å. What may be the radius of Lu...

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  5. Calomel is the name of

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  6. Cerium (Z= 58) is an important nember of the lanthanoids . Which of th...

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  7. Excess of KI reacts with CuSO(4) solution and Na(2)SO(3) solution is a...

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  8. Formula of chromyl chloride is-

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  9. Calomel (H(2)Cl(2)) on reaction with ammonium hydroxide gives

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  10. The reaction, 2Cu^(+)toCu+Cu^(2+) is called-

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  11. The lanthanide contraction is responsible for the fact that

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  12. Amongst [TiE(6)]^(2-), [CoF(6)]^(3-), Cu(2)Cl(2) and [NiCl(4)]^(2-) [A...

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  13. Lanthanoid contraction is caused due to:

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  14. CrO(3) is a//an"….."

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  15. Which of the following is expected to have lowest magnetic moment-

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  16. Identify the incorrect statement among the following.

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  17. Which of the following ion has the maximum magnetic moment?

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  18. Transition elements are usually characterised by variable oxidation st...

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  19. In context with the transition elements, which of the following statem...

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  20. What is the general electronic configuration of transition elements

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