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Which of the following exist as diatomic...

Which of the following exist as diatomic molecules?

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Each halogen has electron less than the nearest noble gas and hence has a strong tendency to share its unpaired electron with another atom of the same halogen to form diatomic molecules.
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PRADEEP-P-BLOCK ELEMENTS -VERY SHORT ANSWER QUESTIONS
  1. Both O(2) and F(2) stabilize high oxidation states but the ability of ...

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  2. Halogens are highly reactive ? Explain.

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  3. Which of the following exist as diatomic molecules?

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  4. Name the halogen with lowest ionization energy.

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

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

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

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

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

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

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

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  12. What happens when iodine reacts with sodium thiosulphate.

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

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

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

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

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

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

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

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  20. Which one among the following is the strongest oxidizing agent ? ClO(...

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