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Why is F2 most reactive among halogens ?...

Why is `F_2` most reactive among halogens ?

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`F_2` is most active due to its low bond dissociation enthalpy, high electronegativity and small size.
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ICSE-P-BLOCK ELEMENTS-EXERCISE (PART-II)(DESCRIPTIVE QUESTIONS)(VERY SHORT ANSWER QUESTIONS)
  1. Why do halogens exist as diatomic molecules ?

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  2. Arrange the given halogens in increasing order of boiling points.

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  3. Why is F2 most reactive among halogens ?

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  4. Why is covalent bonding of halogens always sigma bonding?

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  5. Why is I2 more soluble in KI than in water?

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  6. Among the halogen hydrides, which has maximum per cent of ionic charac...

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  7. Arrange the haloacids in the increasing order of acid strength.

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  8. Why HI cannot be obtained by heating KI with conc. H2SO4 ?

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  9. Which of the hydracids of halogens reacts with glass?

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  10. Iodine forms I3^(-) but F2 does not form F(3)^(-) ions. Why?

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  11. CIF3 exists but FCl3 does not exist. Why?

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  12. What is freon ?

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  13. In interhalogen compounds of the type AB5 and AB7 B is invaribly fluor...

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  14. Name the oxides of chlorine used to bleach paper pulp.

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  15. Why a dilute aqueous solution of hydrochloric acid cannot be concentra...

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  16. Why do noble gases exist as monoatomic ?

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  17. Which noble gas is radioactive?

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  18. Xe readily forms compounds but Kr does not form compounds easily. Why?

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  19. Why helium and neon not form any compounds?

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  20. How does xenon atom form compounds with fluorine even though the xenon...

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