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Which of the following statements are co...

Which of the following statements are correct

A

Aniline and nitrobenzene don't undergo Fridel-Crafts alkylation .

B

1,3-cyclo pentadiene is a stronger acid than 1,3,5 cyclo heptatriene

C

D

O/P ratio is greater in fluoro benzene than in iodobenzene during nitration

Text Solution

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The correct Answer is:
A, B, C
a) Nitrogroup deactivates the ring where as aniline receives `AICI_3` and then deactivates
b) Conjugat base of cyclo-1,3-pentadiene is aromatic and stable, that of the other is anti aromatic and less stable

d is not correct. It is less in fluoro benzene
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AAKASH SERIES-HYDROCARBONS-ADDITIONAL PRACTICE SHEET ( LEVEL-II (PRACTICE SHEET (ADVANCED) (MORE THAN ONE CORRECT ANSWER TYPE QUESTIONS )))
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  4. . The product(s) in the above reaction that can be formed is

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  6. Which of the following compound(s) is/are formed in the following reac...

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  7. The reagents required to prepare

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  8. Possible structures of A is/are

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  9. CH3 - C -=C-CH2CH2CH3 overset(BF3 // C Cl4)to x. The correct statement...

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  10. . The correct statement is/are

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  11. Which of the following statements are correct

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  12. Which of the following statements are correct ?

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  13. Which of the following statements are correct?

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  14. 1,2-dimethyl benzene on ozonolysis gives

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  15. Aniline is more reactive than which of the following towards electroph...

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  16. Which of the following would produce three isomeric products when one ...

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  17. Which of the following is not correct ?

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  18. Complete the following reaction

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  19. Which of the following reactions give meso product?

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  20. Which of the following reactions give diastereomeric products?

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  21. Which of the following reactions are not feasible?

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