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In 3d series (Sc to Zn), Zinc shows the ...

In 3d series (Sc to Zn), Zinc shows the lowest enthalpy of atomization. Why ?

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Due to absence of unpaired electrons.
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Why do the transition elements have higher enthalpies of atomisation? In 3d series (Sc to Zn), which element has the lowest enthalpy of atomisation and why?

In the 3d series (Sc = 21 to Zn = 30) : (i) Which elements shows maximum number of oxidation states ? (ii) Which elements shows only +3 oxidation state ? (iii) Which elements has the lowest enthalpy of atomization?

Assertion : In the series Sc to Zn, the enthalpy of atomisation of zinc is the lowest. Reason : Zinc has greater number of unpaired electrons.

Which one of the following transition element has the lowest value of enthalpy of atomization?

In the series Sc(Z=21) to Zn(Z=30) the enthalpy of atomisation of zinc is the lowest, i.e., 126 kJ mol^(-1) . Why?

CBSE COMPLEMENTARY MATERIAL-The d- AND f-BLOCK ELEMENTS-VERY SHORT ANSWER TYPE QUESTION
  1. Explain reason for the following CuSO(4). 5H(2)O is blue while CuSO(...

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  2. Which element among 3d series exhibit highest oxidation state ?

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  3. In 3d series (Sc to Zn), Zinc shows the lowest enthalpy of atomization...

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  4. Which element among 3d series exhibit only one oxidation state ?

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  5. Why is the 3rd ionization energy of Mn (Z = 25) is unexpectedly high ?

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  6. Define alloy.

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  7. Transition metals show zero oxidation state with ligands like CO. Expl...

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  8. Why can’t HCl acid be used to acidify KMnO(4) solution ?

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  9. Name one ore of Mn and Cr.

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  10. Why Mn^(2+) compounds are more stable than Fe^(2+) compounds towards o...

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  11. Give reason for the following Transition metal (elements) show variab...

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  12. Write any uses of pyrophoric alloy.

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  13. Which is more basic La (OH)(3) or Lu (OH)(3) ? Why

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  14. Find out number of Cr-O - bond//bonds in CrO(4)^(2-) ion.

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  15. What is the effect of increasing pH on the colour of K(2)Cr(2)O(7) sol...

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  16. Why isCe^(4+) in aqueous solution a good oxidizing agent ?

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  17. Why do Zr and Hf exhibit similar properties ?

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  18. Write short notes on lanthanoid contraction ?

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  19. Why is Cu (Z = 29) considered a transition metal ?

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  20. Arrange the given in increasing order of acidic character : CrO(3) ,...

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