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Why halogens are coloured gases and they...

Why halogens are coloured gases and they are very reactive ? Comment on it.

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JMD PUBLICATION-THE p-BLOCK ELEMENTS-Example
  1. Give two examples to show the anomalous behaviour of fluorine.

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  2. Why ClF3 exists, but FCl3 does not exist ?

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  3. Why halogens are coloured gases and they are very reactive ? Comment o...

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  4. Bond dissociation energy of F2 is less than Cl2.

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  5. Explain the following : Iodine is more soluble in KI solution than i...

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  6. Explain the following : Fluorine does not show positive oxidation st...

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  7. What are pseudohalogens ? Give example.

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  8. Explain: Electron gain enthalpy of chlorine is more negative than fluo...

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  9. Why electron affinity of fluorine is less than that of chlorine ?

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  10. What are interhalogen compounds ? How interhalogen compounds are pre...

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  11. What are the interhalogen compounds ? Why are these more reactive than...

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  12. Why ICl3 is more reactive than I2 ?

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  13. ICI7 does not exist wile IF7 exists. Why ?

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  14. Boiling point of HCI is lower than HF. Explain why ?

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  15. Why are halogens coloured ?

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  16. Halogens have maximum negative electron gain enthalpy in the respectiv...

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  17. Although electron gain enthalpy of fluorine is less negative as comp...

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  18. Considering the parameters such as bond dissociation enthalpy, electro...

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  19. Why is fluorine a very reactive halogen ?

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  20. Fluorine exhibits only - 1 oxidation state whereas other halogens exhi...

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