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Halogens are highly reactive ? Explain....

Halogens are highly reactive ? Explain.

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Halogens have seven electrons in their respective valence shells and thus need only one more electron to complete their respective octets. That is why halogens are very reactive.
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PRADEEP-P-BLOCK ELEMENTS -VERY SHORT ANSWER QUESTIONS
  1. Write the structures of (i) peroxomonosulphric acid and (ii) peroxodis...

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  2. Both O(2) and F(2) stabilize high oxidation states but the ability of ...

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  3. Halogens are highly reactive ? Explain.

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  4. Which of the following exist as diatomic molecules?

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  5. Name the halogen with lowest ionization energy.

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  6. Fluorine is the most reactive of all four common halogens.

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  7. Most of the reactions of fluorine are exothermic. Give reasons.

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  8. Give one chemical method for the preparation of flourine.

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  9. Write the balanced equation for the following reaction. NaCl is heat...

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  10. Write the chemical equation to show that chlorine gas can be obtained ...

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  11. Write a balanced equation for the reaction of Cl(2) with cold and dilu...

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  12. What happens when chlorine gas is passed through a hot concentrated so...

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  13. What happens when iodine reacts with sodium thiosulphate.

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  14. (a) Name the halogen hydracid with highest bond energy. (b) When HI ...

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  15. KHF(2) is known but KHCl(2) is not known. Give reasons.

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  16. HI cannot be prepared by the action of conc. H(2)SO(4) on KI because

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  17. Arrange the following acids in the correct increasing order of their a...

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

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  19. Give an example of a disproportionation reaction of F(2) ?

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  20. Name the halogen which forms only one oxo acid and also write the form...

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