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The halides of transition elements becom...

The halides of transition elements become more covalent with increasing oxidation state of the metal. Why?

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As the oxidation state of the element increases, its charge increases. According to Fajan.s Rules, as the charge of the metal ion increases covalent character increases because the positively charged cation attracts the electron cloud on the anion towards itself.
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U-LIKE SERIES-THE D-AND F-BLOCK ELEMENTS -SHORT ANSWER QUESTIONS (2 marks each)
  1. When a brown compound of manganese (A) is treated with HCl it gives a ...

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  2. Explain why (i) E^(@) for Mn^(3+)//Mn^(2+) couple is more positive t...

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  3. With the help of ionic equations, describe what happens when (i) pH ...

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  4. Although Zr belongs to 4d and Hf belongs to 5d transition series, but ...

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  5. The outer electronic configurations of two transition metals are (i) 3...

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  6. The second and third rows of transition elements resemble each other m...

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  7. Although Cr^(3+) and Co^(2+) ions have the same number of unpaired ele...

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  8. Although +3 oxidation state is the characteristic oxidation state of l...

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  9. When orange solution containing CrO(7)^(2-) ion is treated with an alk...

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  10. Explain why does the colour of KMnO(4) disappear when oxalic acid is a...

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  11. E^(@) of Cu is + 0.34 V while that of Zn is – 0.76 V. Explain.

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  12. The halides of transition elements become more covalent with increasin...

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  13. Reactivity of transition elements decreases almost regularly from Sc t...

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  14. Explain any one of the following statements : (i) The transition met...

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  15. Answer the following questions : (i) Which element in the first seri...

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  16. How do you account for the following: (i) all scandium salts are whi...

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  17. Why is the +2 oxidation state of manganese quite stable, while the sam...

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  18. While filling up of the electrons in the atomic orbitals, the 4s orbit...

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  19. Write complete equations for (i) Oxidation of Fe^(2+) by Cr(2)O(7)^(...

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  20. Identify the following : (i) Oxoanion of chromium which is stable in...

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