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The catalyst used for olefin polymerisat...

The catalyst used for olefin polymerisation is

A

Zeigler - Natta catalyst

B

Wilkinson's catalyst

C

Raney nickel catalyst

D

Merrified resin

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SHARAM PUBLICATION-D AND F BLOCK ELEMENTS-EXERCISE
  1. Among the following series of transition metal ions the one where all ...

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  2. Which of the following d- block elements has half filled penultimate d...

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  3. The catalyst used for olefin polymerisation is

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  4. The malleability and ductility of metals can be accounted due to

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  5. Write down the electronic configuration of gadolinium (Gd). Its atom...

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  6. Which of the following ions is most stable in aqueous solution ?

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  7. For the four successive transition elements (Cr, Mn, Fe and Co), the s...

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  8. Write the electronic configuration Nickel.

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  9. Why are most of the transition metal compounds are paramagnetic ?

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  10. Which of the d - block elements are not regarded as transition element...

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  11. Why Fe^3+ is more stable than Fe^2+ ?

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  12. Why are scandium salts colourless ?

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  13. Out of the following which one has more number of unpaired electrons ?...

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  14. Why enthalpy of atomisation Zn is the lowest in the first transition s...

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  15. Between Sc^(3+) and Cr^(3+) ion which will give colourless compound.

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  16. What is the general electronic configuration of d-block elements ?

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  17. Which metals form the alloy brass ?

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  18. When Ethylene reacts with alkaline solution of KMnO4 a dihydric alcoho...

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  19. What are alloys? Name an important alloy which contains some of the la...

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  20. Write the formula of one complex ion of Cu and Ni.

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