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Show that Conc. H(2)SO(4) is a dehydrati...

Show that Conc. `H_(2)SO_(4)` is a dehydrating agent.

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Cone `H_(2)SO_(4)` removes elements of water from the organic compounds.
Example : sugar undergoes charring when it is warmed with Cone `H_(2)SO_(4)`
`C_(12)H_(22)O_(11)overset(H_(2)SO_(4))rarr12C+11H_(2)O`
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(a) Give reason: (i) Hydrogen bonding in H_(2)O but not in H_(2)S . (ii) Conc. H_(2)SO_(4) is a good dehydrating agent. (b) Give the structure of sulphurous acid ( H_(2)SO_(3) ).

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SUBHASH PUBLICATION-THE 'P'-BLOCK ELEMENTS-EXERCISE
  1. How is Cone. H(2)SO(4) manufactured by contact process ?

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  2. Complete the following equation. H(2)SO(4)+So(3)rarr?

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  3. Show that Conc. H(2)SO(4) is a dehydrating agent.

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  4. Complete the following equation. C(12)H(22)O(11)overset(H(2)SO(4))ra...

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  5. Complete the following equation and balance . * Cu+H(2)SO(4)rarr *...

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  6. Given two anomalous properties of fluorine

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  7. Fluorine exhibits only - 1 oxidation state , whereas other halogens ex...

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  8. Complete the following equations . 2F(2)+2H(2)Orarr

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  9. Complete the following equations. 2PbO(2)(s)overset(heat) rarr……….+…...

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  10. Give three methods of preparation of chlorine gas.

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  11. Name the gas liberated when concentrated HCI is heated with MnO(2) Giv...

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  12. How is chlorine prepared in the laboratory using KMNo(4) ?

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  13. How chlorine gas is manufactured by Deacon's process ?

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  14. Give three examples to show that chlorine has affinity towards hydroge...

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  15. How excess of ammonia reacts with chorine .

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  16. How excess of chlorine reacts with ammonia.

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  17. How conc and dilute sodium hydroxide ( alkali ) reacts with chlorine.

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  18. Complete the following reactions. underset(("Cold and dilute"))(2NaO...

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  19. How hot and concentrated sodium hydroxide reacts with chlorine gas ?

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  20. Give the reaction of chlorine with slaked lime.

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