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Electron gain enthalpy of fluorine is le...

Electron gain enthalpy of fluorine is less than that of chlorine. Why? 

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Fluorine atom is small in size and suffers with interelectronic repulsions between seven valence electrons. The added electron experiences much repulsion on smaller F. Hence its electron gain enthalpy is less.
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AAKASH SERIES-GROUP 17 ELEMENTS-EXERCISE - 3.2
  1. Electron gain enthalpy of fluorine is less than that of chlorine. Why?

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  2. Why elements of group 17 are called halogens?

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  3. Write on the bonding and oxidation states of halogens.

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

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  5. Which element brings about highest coordination number of elements? Wh...

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  6. Iodine exhibits basic properties. Explain.

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  7. Differentiate the products of water on reaction with fluorine and chlo...

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  8. Discuss the oxidation states of chlorine in its compounds.

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  9. Explain the trends in ionisation potential, electron affinity, electro...

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  10. Discuss the ease of formation of hydrogen halides. Write the trends in...

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  11. How do halogens react with water? Give chemical equations.

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  12. Discuss the difference in the reactions of halogens with cold dilute a...

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  13. Discuss the feasibility of oxidising halides, using halogens, sulphuri...

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  14. What are interhalogen compounds? Discuss on the types of these compoun...

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  15. Explain with suitable examples that the oxidation ability of halogens ...

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  16. With the help of Born-Haber cycle, explain the chemical reactivity of ...

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  17. The oxidation of fluoride is very difficult to perform. Why?

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  18. Iodine is liberated in the reaction between KI and Cu^(2+), but bromin...

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  19. Interhalogen compounds are more reactive than the corresponding haloge...

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  20. Phosphoric acid is preferred in place of sulphuric acid in the prepara...

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  21. Fluorine is called super halogen. Why?

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