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What is Huckel's rule ?...

What is Huckel's rule ?

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ICSE-HYDROCARBONS -SHORT ANSWER TYEP QUESTIONS
  1. How will you account for the acidic character of acetylene?

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  2. Why are alkenes more reactive than alkanes ?

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  3. What are poly atomic ions? Give two examples?

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  4. Mention the important characteristics of aromatic compounds.

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  5. What are arenes? Give two examples.

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  6. Discuss the Kekule's structure of benzene.

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  7. Explain the resonance structure of benzene. What do you understand by ...

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  8. What is meant by aromaticity ?

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  9. What is Huckel's rule ?

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  10. Write the structures of possible isomers of dichlorobenzene.

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  11. What is meant by directive influence of groups ? Sort out the o- and p...

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  12. Why does a m-directing group direct the incoming group towards the m-p...

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  13. How does an o- and p-directing group activate the ring? Illustrate wit...

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  14. What are the main constituents of coal tar?

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  15. How is benzene prepared in the laboratory? Write a note on its electro...

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  16. How is benzene manufactured from coal tar ? Describe the process.

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  17. Although benzene is highly unsaturated it does not undergo addition re...

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  18. What are the most characteristic reactions of benzene ? Give two examp...

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  19. Discuss the mechanism of nitration of benzene.

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  20. What is Friedel-Crafts reaction? Give an example.

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