Home
Class 12
CHEMISTRY
Which one of the following is not aroma...

Which one of the following is not aromatic

A

Benzene

B

Cyclopenta dienyl cation

C

Cyclopropenyl cation

D

Tropylium cation

Text Solution

Verified by Experts

The correct Answer is:
D
Cyclo pentadienyl cation `4pi` electrons and hence is not aromatic. Acutally it is antiaromatic.
Promotional Banner

Topper's Solved these Questions

  • HALOALKANES AND HALOARENES

    DINESH PUBLICATION|Exercise Brain storming multiple choice questions|11 Videos

  • IONIC EQUILIBRIUM

    DINESH PUBLICATION|Exercise UNIT TEST -2|30 Videos

Similar Questions

Explore conceptually related problems

Which one of the following is an aromatic compound?

Which one of the following is an aromatic compound ?

Which one of the following ion is aromatic ?

Which of the following is not an aromatic species ?

DINESH PUBLICATION-HYDROCARBONS-All Questions
  1. In a compound electrophilic substitution has occurred the substituent...

    Text Solution

    |

  2. From which one of the following can both ethylene and acetylene be pre...

    Text Solution

    |

  3. Which one of the following is not aromatic

    Text Solution

    |

  4. Give the IUPAC name of the alkene

    Text Solution

    |

  5. Of the isomeric haexanes, the isomers that give the minimum and maximu...

    Text Solution

    |

  6. Which of the following gives on ozonolysis both aldehydes and ketones?

    Text Solution

    |

  7. Match the following list

    Text Solution

    |

  8. Identify the alkyne in the followin sequence of reactions "Alkyne" u...

    Text Solution

    |

  9. One mole fo X on ozonolysis gave one mole of acetaldehyde and one mole...

    Text Solution

    |

  10. The carbon carbon bond length in benzene is

    Text Solution

    |

  11. The additon of HBr to 2-pentene gives

    Text Solution

    |

  12. Ethylene can be separated from acetylene by passing the maxiture throu...

    Text Solution

    |

  13. In the reaction given below, X is C(6)H(5)MgBr+CH(3)OHrarrX

    Text Solution

    |

  14. Towards electrophilic reagents

    Text Solution

    |

  15. When neopentyl bromide is subjected to Wurtz reaction, the product for...

    Text Solution

    |

  16. An alkyl bromide reacts with Na metal to form 4,5-diethyl octane. The ...

    Text Solution

    |

  17. The reaction CH(3)CH(2)Cl underset((ii)Cu)overset((i)Li)to overset(CH(...

    Text Solution

    |

  18. Acetylene when treated with dil. H(2)SO(4) and HgSO(4) given

    Text Solution

    |

  19. Benzene can undergo

    Text Solution

    |

  20. CaC(2)overset(H(2)O)toAoverset("Red tube hot")toBunderset(CH(3)Cl)over...

    Text Solution

    |