Home
Class 11
CHEMISTRY
Purine has four nitrogen atoms, which on...

Purine has four nitrogen atoms, which one of them is expected to be basic?

A

Only `N_4` is basic

B

`N_1,N_2 and N_3` are not basic

C

`N_2, N_4 ` are not basic

D

`N_1 , N_2 and N_3` are basic

Text Solution

Verified by Experts

The correct Answer is:
D
`N_4` is not basic , the lone pair to nitrogen is part of the aromatic system.
Promotional Banner

Topper's Solved these Questions

  • HYDROCARBONS

    AAKASH SERIES|Exercise ADDITIONAL PRACTICE SHEET ( LEVEL-II (LECTURE SHEET (ADVANCED) (MORE THAN ONE CORRECT ANSWER TYPE QUESTIONS)))|20 Videos

  • HYDROCARBONS

    AAKASH SERIES|Exercise ADDITIONAL PRACTICE SHEET ( LEVEL-II (LECTURE SHEET (ADVANCED) (LINKED COMPREHENSION TYPE QUESTIONS(PASSAGE-I))))|3 Videos

  • HYDROCARBONS

    AAKASH SERIES|Exercise PRACTICE SHEET (EXERCISE - VI (LEVEL-II (MATRIX MATCHING TYPE QUESTIONS )))|4 Videos

  • GENERAL ORGANIC CHEMISTRY

    AAKASH SERIES|Exercise QUESTIONS FOR DESCRIPTIVE ANSWERS|35 Videos

  • HYDROGEN AND ITS COMPOUNDS

    AAKASH SERIES|Exercise QUESTIONS FOR DESCRIPTIVE ANSWERS|20 Videos
AAKASH SERIES-HYDROCARBONS-ADDITIONAL PRACTICE SHEET ( LEVEL-I (LECTURE SHEET (MAIN) (STRAIGHT OBJECTIVE TYPE QUESTIONS)))
  1. Which of the following is a nonaromatic.

    Text Solution

    |

  2. Which of the following structures are aromatic

    Text Solution

    |

  3. Purine has four nitrogen atoms, which one of them is expected to be ba...

    Text Solution

    |

  4. C6H6 +CH2Cl2 overset(AlCl3)to C , excess .

    Text Solution

    |

  5. The correct order of increasing basic nature for the following compoun...

    Text Solution

    |

  6. The increasing order of the acidic nature of the following compounds i...

    Text Solution

    |

  7. In Huckel's (4n+2) rule of for aromaticity, 'n' represents

    Text Solution

    |

  8. Which of the following are conjugated dienes?

    Text Solution

    |

  9. What is the correct order of exothermicity for hydrogenation of the fo...

    Text Solution

    |

  10. Which of the following arrangements of p orbitals gives the lowest ene...

    Text Solution

    |

  11. Which of the following dienes undergoes the least exothermic hydrogena...

    Text Solution

    |

  12. Which of the following is not formed by the addition of 1 mole of HCl ...

    Text Solution

    |

  13. What is the reactive intermediate in the reaction of 1,3-butadiene wit...

    Text Solution

    |

  14. What is the thermodynamic product obtained from the addition of 1 mole...

    Text Solution

    |

  15. Which of the following is the repeat unit of polybutadiene?

    Text Solution

    |

  16. What is the major organic product obtained from the following reaction...

    Text Solution

    |

  17. Which of the following has the highest value of ë max in the ultraviol...

    Text Solution

    |

  18. Ethyl iodide and n-propyl iodide are allowed to under go wurtz reactio...

    Text Solution

    |

  19. CH3Cl to CH4 Above conversion can be achieved by :

    Text Solution

    |

  20. CH4 + Cl2 overset(hv)to CH3 Cl + HCl to obtain high yields of CH3Cl , ...

    Text Solution

    |