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Which of the following ions is most stab...

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

A

`Mn^3+`

B

`Cr^3+`

C

`V^3+`

D

`Ti^3+`

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SHARAM PUBLICATION-D AND F BLOCK ELEMENTS-EXERCISE
  1. The malleability and ductility of metals can be accounted due to

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

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

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

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  5. Write the electronic configuration Nickel.

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

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

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

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  9. Why are scandium salts colourless ?

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

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

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

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

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  14. Which metals form the alloy brass ?

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

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

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

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  18. Why do transition elements exhibit variable oxidation states ?

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  19. Fill in the blanks : The first transition series starts with the eleme...

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  20. Fill in the blanks : The only metal which has a positive standard redu...

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