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Why chlorine does not bleach in the abse...

Why chlorine does not bleach in the absence of moisture?

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Chlorine acts as a bleaching agent only in the presence of moisture. Chlorine reacts with water to form HOCl and HCl. HOCl being unstable, decomposes to give nascent oxytgen, due to nascent oxygen, chlorine bleaches by oxidation.
`H_2O+Cl_2toHCl+HOCl`
`HOCltoHCl+[O]`
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CENGAGE CHEMISTRY-APPENDIX INORGANIC VOLUME 2-Short Answer Type
  1. Why halogens are very reactive?

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  2. Why fluorine is most reactive?

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  3. Why chlorine does not bleach in the absence of moisture?

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  4. What happens when fluorine gas is passed through water?

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  5. What is the hydridisation of O in Cl2O?

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  6. Which of the following is the only exothermic oxide of chlorine?

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  7. Give examples of paramagnetic oxide of chlorine.

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  8. Give the name of least stable and most stable oxides of chlorine.

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  9. Arrange oxyanions of chlorine in decreasing order of stability.

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  10. Arrange hypohalous acids in decreasing order of acidic nature.

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  11. Arrange hypohalous acids in decreasing order of stability.

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  12. Arrange hypohalous acids acids in decreasing order of oxidising nature...

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  13. What is the order of polarising nature of noble gases?

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  14. What is the order of boiling point of noble gases?

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  15. What is the order iof ionisation enthalpy values of noble gases?

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  16. State the hydridisation of central atom in XeF2 and XeF4 molecules.

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  17. State the total number of electron pairs surrounding the central atom ...

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  18. Name the first noble gas compound.

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  19. Give the name of six noble gas compounds known to you.

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  20. Why Xe forms more compounds than Kr?

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