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Which one of the following statements i...

Which one of the following statements is correct?

A

Cyclohexadiene is an aromatic compound

B

Deactivating groups are ortho and para directing groups

C

Reaction of benzene with 1-chloropropane and anhydrous `AlCl_(3)` gives n-propylbenzene

D

Electrophilic substitution of benzene takes place via ` sigma `- bomplex

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The correct Answer is:
D
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AAKASH SERIES-AROMATIC HYDROCARBONS-OBJECTIVE EXERCISE-2
  1. The reagent used for converting benzene to ethyl benzene is

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  2. Benzene on treating with a mixture of conc. HNO(3) and H(2)SO(4) at 1...

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  3. The correct relation among the following is

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  4. Arrange the following compound in the descending order of their reacti...

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  5. Which of the following group is meta directing and ring deactivating

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  6. The decreasing order of reactivity of C(2)H(6), C(2)H(4), C(2)H(2) an...

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  7. The ratio of the number of hybrid and pure orbitals in C(6)H(6) used f...

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  8. In the electrophilic substitution of benzene, to restore aromatic cha...

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  9. According to Huckel's ruel to explain aromaticity the compound has to...

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  10. When acetylene is passed through red hot iron tube, compound 'X' is f...

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  11. A mixture of benzene and aniline can be separated by

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  12. C(6)H(6)+CH(3)Cl to C(6) H(5) CH(3) +HCl The above reaction is an ...

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  13. When phenol is distilled with Zn dust then it gives

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  14. Identify the reagents A and B used in the following reactions

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  15. Which one of the following causes cancer?

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  16. Benzene on ozonolysis followed by reaction with Zn+H(2)O gives

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  17. Which one of the following statements is correct?

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  18. Consider the nitration of benzene using mixed conc. H2SO4 and HNO3 If ...

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  19. 1,2,5, 6- Dibenzation of the following

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  20. Which of the following enter into human body and undergos various bioc...

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