Home
Class 11
CHEMISTRY
Explain why alkyl groups act as electron...

Explain why alkyl groups act as electron donors when attracted to a `pi-system`.

Text Solution

Verified by Experts

Alkyl group has no lone pair of electrons but it acts as an electron donor when attached to a `pi`-electron system because of hyper conjugation. Let us illustrate by toluene in which methyl `(CH_(3))` group is attached to a benzene ring containing three pi-electrons in the alternate positions. the various resonating structures are as follows :
Promotional Banner

Topper's Solved these Questions

  • ORGANIC CHEMISTRY - SOME BASIC PRINCIPLES & TECHNIOUES

    DINESH PUBLICATION|Exercise SHORT ANSWER TYPE QUESTION|33 Videos

  • ORGANIC CHEMISTRY - SOME BASIC PRINCIPLES & TECHNIOUES

    DINESH PUBLICATION|Exercise CONCEPT BASED QUESTION|45 Videos

  • ORGANIC CHEMISTRY - SOME BASIC PRINCIPLES & TECHNIOUES

    DINESH PUBLICATION|Exercise PURIFICATION & CHARACTERISATION OF ORGANIC COMPOUNDS|38 Videos

  • NUCLEAR AND RADIO CHEMISTRY

    DINESH PUBLICATION|Exercise Evaluate Yourself|45 Videos

  • P BLOCK ELEMENTS (GROUP 13 AND 14 )

    DINESH PUBLICATION|Exercise Straight obj.|17 Videos

Similar Questions

Explore conceptually related problems

Explain why alky1 groups act as electron donors when attacted to a pi-system .

Explain why high-tech industries in many countries are being attracted to the peripheral areas of major metropolitan centers ?

Which of the following alkyl groups exerts maximum hyperconjugation when bonded to an unsaturarted system?

Explain why a neutral object can be attracted to a charged objec. Why can this neutal object not be repelled by a charged object ?

Why do NH_(3) and H_(2)O act as electron pair donors?

DINESH PUBLICATION-ORGANIC CHEMISTRY - SOME BASIC PRINCIPLES & TECHNIOUES-N.C.E.R.T.
  1. Which is expected to be more stable : O(2)NCH(2)CH(2)O^(-) or CH(3)CH(...

    Text Solution

    |

  2. Draw the resonance structures for the following compounds. Show the el...

    Text Solution

    |

  3. Explain why alkyl groups act as electron donors when attracted to a pi...

    Text Solution

    |

  4. What are nucleophiles and electrophiles. Explain with examples.

    Text Solution

    |

  5. Identify the reagents shown in bold in the following equations as nucl...

    Text Solution

    |

  6. Classify the following reactions in one of the reaction type studied i...

    Text Solution

    |

  7. What is the relation between the following pairs ? (a) (c) H-...

    Text Solution

    |

  8. Classify each of the following as homolysis as homolysis or heterolysi...

    Text Solution

    |

  9. Explain the terms inductive and electromeric effects. Which electron d...

    Text Solution

    |

  10. Give a brief description of the principle of the following processes t...

    Text Solution

    |

  11. Describe the method which can be used to separate two compounds with d...

    Text Solution

    |

  12. What is the difference between distillation, distillation under reduce...

    Text Solution

    |

  13. Describe the chemistry of Lassaigne's tets.

    Text Solution

    |

  14. Differentiate between the principle of estimation of nitrogen in an or...

    Text Solution

    |

  15. Describe the principle of estimation of halogens, sulphur and phosphor...

    Text Solution

    |

  16. Explain the principle of paper chromatography.

    Text Solution

    |

  17. Why is acid added to sodium extract before adding silver nitrate for t...

    Text Solution

    |

  18. Why is an organic compound fused with sodium for testing nitrogen, hal...

    Text Solution

    |

  19. Name a suitable technique of the components from a mixture of calcium ...

    Text Solution

    |

  20. An organic liquid vaporises at a temperature below its boiling point i...

    Text Solution

    |