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Give the reason for bleaching action of ...

Give the reason for bleaching action of `Cl_2`.

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When chlorine reacts with water, it produces nascent oxygen. This nascent oxygen then combines with the coloured substances present in the organic matter to oxide them into colourless substances.
`Cl_(2) + H_(2)O to 2 HCl+ [O]`
Coloured substances `+ [O] to`Oxidized colourless substance
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NCERT ENGLISH-THE P-BLOCK ELEMENTS-EXERCISE
  1. Give two examples to show the anomalous behavious of fluorine.

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  2. Sea is the greatest source of some halogens. Comment.

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  3. Give the reason for bleaching action of Cl2.

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  4. Name two poisonous gases which can be prepared from chlorine gas.

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  5. Why is ICI more reactive than I2?

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  6. Why is helium used in diving apparatus?

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  7. Balance the following equation: XeF6+H2OtoXeO2F2+HF

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  8. Why has it been difficult to study the chemistry of radon?

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  9. Discuss the general characteristics of Group 15 elements with referenc...

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  10. Why does the reactivity of nitrogen differ from phosphorus?

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  11. Discuss the trends in chemical reactivity of group 15 elements.

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  12. Why does NH3 form hydrogen bond but PH3 does not?

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  13. How is nitrogen prepared in the laboratory? Write the chemical equatio...

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  14. How is ammonia manufactured industrially?

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  15. Illustrate how copper metal can give different product on reaction wit...

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  16. Give the resonating structures of NO(2) and N(2)O(5).

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  17. The HNH angle value is higher than HPH, HAsH and HSbH angles. Why?

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  18. Why does R3P=0 exist but R3N=0 does not (R= alkyl group)?

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  19. Explain why NH(3) is basic while BiH(3) is only feebly basic ?

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  20. Nitrogen exists as diatomic molecule and phosphorus as P(4). Why ?

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