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A group which deactivates the benzene ri...

A group which deactivates the benzene ring towards electrophilic substitution but directs the incoming group towards o - and p- positions is

A

`–NH_2`

B

`–Cl`

C

`–NO_2`

D

`-C_2H_5`

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The correct Answer is:
B
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AAKASH SERIES-AROMATIC HYDROCARBONS-OBJECTIVE EXERCIES - 1 (BENZENE)
  1. The organic compound 'X' is

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  2. According to the molecular formula, benzene appears to be highly unsat...

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  3. Which of the following statements is wrong

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  4. A group which deactivates the benzene ring towards electrophilic subst...

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  5. {:("Set-I ","Set-II "),("A) Sodium benzoate ","1) Red hot iron tube ")...

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  6. The compound "X" is used as

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  7. Maximum number of atoms present in same plane of benzene molecule

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  8. Number of double bonds in gammaxene (BHC) is

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  9. Why does 1,3-cyclohexadiene undergo dehydrogenation readily ?

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  10. Which of the following is represented incorrectly ?

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  11. The wrong statement in the following is

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  12. Which of the following is a wrong statement ?

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  13. Which of the following is not correct ?

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  14. The function of anhydrous aluminium chloride in the Friedel-Craft's re...

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  15. Benzene does not undergo addition reaction easily because

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  16. Under pressure, (with hydrogen) in presence of nickel catalyst, benze...

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  17. C6H6 underset(H2SO4)overset(HNO3)(rarr)X underset(FeBr3)overset(Br2)ra...

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  18. In which of the following reactions, aromatic character is observed in...

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  19. Which of the following are aromatic compounds ?

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  20. Identify the starting material 'X'

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