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Bleaching of flowers by Cl(2) is permane...

Bleaching of flowers by `Cl_(2)` is permanent while bleaching by `SO_(2)` is temporary, why ?

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Bleaching by `Cl_(2)` id due to oxidation. The colour of bleached flower can be restored . The bleaching by `SO_(2)` is due to reduction. The colour of bleached article can be restored on exposure to air or oxygen (oxidation).
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Explain the following with proper reason: (i) Bleaching of flowers by chlorine is permanent while after bleaching with SO_2 , the colour returns. (ii) Iodine dissolves more in KI solution than in water.

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DINESH PUBLICATION-THE P-BLOCK ELEMENTS -Questions From Board Examinations
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  9. Why is PCl(5) more covalent than PCl(3) ?

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  14. Why phosphorus is more reactive than nitrogen?

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  16. How does nitric acid react with (i) Copper (ii) Iron ? Give chemical e...

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  17. What is the basicity of H(3)PO(3) ?

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  18. What happens when barium azide is heated ?

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  19. How are interhalogen compounds formed ? Write general compositions tha...

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  20. Find the total number of diprotic acids among the following: H(3)PO(...

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