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Why does presence of a nifro group make ...

Why does presence of a nifro group make the benzene ring less reactive in comparison to the unsubstituted benzene ring . Explain .

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CBSE COMPLEMENTARY MATERIAL-HYDROCARBONS-2- MARK QUESTION
  1. Melting point of cis - But - 2 - ene is lower than that of trans - But...

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  2. Draw the structures of cis and trans Hex -2 - ene.

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  3. Explain with the help of equation : Ozonolysis of propene.

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  4. Give a chemical test to distinguish between ethane and ethene.

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  5. What do you understand by perxide effect (Kharasch effect) ?

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  6. What factor determines the stability of alkene ?

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  7. Arrange the following alkenes in decreasing order of stability : CH(...

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  8. + O(3) overset(Zn)underset(CH(3)COOH)to ? + ?

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  9. An alkene on treatment with HBr in presence of peroxide can generate t...

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  10. What happens when But - 2 - ene reacts with acidified potassium perman...

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  11. You are provided with But - 2 - yne, how will you convert it into : ...

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  12. You are provided with But - 2 - yne, how will you convert it into : ...

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  13. An alkene C(4)H(8) reacts with HBr both in the presence and absence of...

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  14. Arrange ethane, ethene and ethyne in the order of increasing acidity.

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  15. Write the structures of the products A and B of the following reaction...

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  16. Write the structures of the products A and B of the following reaction...

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  17. Give a chemical test to distinguish between ethyne and ethene.

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  18. Out of benzene and toluene, which undergo nitration easily and why ?

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  19. Why does presence of a nifro group make the benzene ring less reactive...

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  20. What happens when Chlorine is passed through benzene in the presence o...

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