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What is pyrene? Mention an important use...

What is pyrene? Mention an important use of pyrene.

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CHHAYA PUBLICATION-HALOAKANES AND HALOARENES-Warm up exercise
  1. The dipole moment of fluorobenzene is lower than that of iodobenzene, ...

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  2. Arrange the various isomers of dichlorobenzene in the order of increas...

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  3. Explain why chlorobenzene is inert towards nucleophilic substitution r...

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  4. Identify A and B explain why they are formed.

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  5. Identify A and B explain why they are formed.

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  6. The hydrolysis of p-chloromitrobenzene requiries it to be heated with ...

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  7. Offer a test for the distinction between ethyl chloride and chlorobenz...

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  8. How will you effect the following conversions? (i)

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  9. How will you effect the following conversions? (ii)

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  10. Explain why chlorine in chlorobenzene is deactivating inspite of being...

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  11. Write the structures of all isomers having molecular fromula, C(7)H(7)...

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  12. How can chloroform be preserved?

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  13. Explain why chloroform has been found to be unfit for use as a genral ...

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  14. Mention one medicinal use of iodoform.

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  15. What is pyrene? Mention an important use of pyrene.

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  16. Write IUPAC name of Freon-12 and mention an important use of it.

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  17. what is DDT ? Write its complete name and structure?

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  18. Explain why the use of DDT is banned in many countries.

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  19. Write the name of a contact insecticide which is prepared from chlorob...

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  20. Mention two polyhalogen compounds which, when heated with silver powde...

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