Home
Class 12
CHEMISTRY
In the following group : -OAc(I),-OMe(...

In the following group :
`-OAc(I),-OMe(II),-OSO_(2)(III),-OSO_(2)CF_(3)(IV)`
The order of leaving group ability is :

A

IgtIIgtIIIgtIV

B

IVgtIIIgtIgtII

C

IIIgtIIgtIgtIV

D

IIgtIIIgtIVgtI

Text Solution

Verified by Experts

The correct Answer is:
B
Weaker the base better is the leaving group. Now acidity decreases in the order: `CF_(3)SO_(2)OH gt MeSO_(2)OH gt AcOH gt MeOH,` therefore, basicity of their conjugate bases increases in the reverse direction, i.e., `CF_(3)SO_(2)O^(-)(IV) lt MeSO_(2)O^(-) (III) lt AcO^(-)(I) lt MeO^(-)(II)`. thus, the correct order is: IVgtIIIgtIgtII, i.e., option (b) is correct.
Promotional Banner

Topper's Solved these Questions

  • HALOALKANES AND HALOARENES

    PRADEEP|Exercise Competition Focus (JEE (MAIN AND ADVANCED)/MEDICAL ENTRANCE SPECIAL (MULTIPLE CHOICE QUESTIONS-II))|8 Videos

  • HALOALKANES AND HALOARENES

    PRADEEP|Exercise Competition Focus (JEE (MAIN AND ADVANCED)/MEDICAL ENTRANCE SPECIAL (MULTIPLE CHOICE QUESTIONS-III COMPREHENSION TYPE ))|7 Videos

  • HALOALKANES AND HALOARENES

    PRADEEP|Exercise VALUE BASED QUESTIONS WITH ANSWERS|4 Videos

  • GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS

    PRADEEP|Exercise Curiosity Questions|2 Videos

  • ORGANIC COMPOUNDS CONTAINING NITROGEN

    PRADEEP|Exercise IMPORTANT QUESTIONS FOR BOARD EXAMINATION|27 Videos

Similar Questions

Explore conceptually related problems

In the following groups: (I) -OAc , (II) -OMe , (III) -OSO_(2)Me , (IV) OSO_(2)CF_(3) the order of leaving group ability is-

The correct leaving group ability order is :

The order of leaving group ability is .^(-)underset((I))(OAc).^(-) underset((II))(OMe).^(-)underset((III))(SO_3Me).^(-)underset((IV))(SO_3CF_3) The order of leaving group ability is

Leaving Groups || SN2

PRADEEP-HALOALKANES AND HALOARENES-Competition Focus (JEE (MAIN AND ADVANCED)/MEDICAL ENTRANCE SPECIAL (MULTIPLE CHOICE QUESTIONS - I))
  1. Which of the following reactions is an example of nucleophilic substit...

    Text Solution

    |

  2. CH(3)Br+Nu^(-)rarrCH(3)Nu+Br^(-) The decreasing order of the rate of...

    Text Solution

    |

  3. In the following group : -OAc(I),-OMe(II),-OSO(2)(III),-OSO(2)CF(3)(...

    Text Solution

    |

  4. The most reactive nucleophile among the following is

    Text Solution

    |

  5. For the following (i) I^(-) (ii) Cl^(-) (iii) Br^(-) the increasin...

    Text Solution

    |

  6. The decreasing order of nucleophilicity among the nucleophiles is

    Text Solution

    |

  7. Which one is most reactive towards S(N)1 reactions ?

    Text Solution

    |

  8. Consider the following bromides: The correct order of S(N)1 react...

    Text Solution

    |

  9. The order of rate of hydrolysis of alkyl halides 1^(@),2^(@),3^(@) and...

    Text Solution

    |

  10. The increasing order of hydrolysis of the following compounds is

    Text Solution

    |

  11. The organic chloro compound, which shows complete stereochemical inver...

    Text Solution

    |

  12. The major product of the following reaction is

    Text Solution

    |

  13. In a S(N)2 substitution reaction of the type R-Br+Cl^(-) overset("DM...

    Text Solution

    |

  14. Consider the reaction : CH(3)CH(2)CH(2)Br+NaCNrarrCH(3)CH(2)CH(2)CN+...

    Text Solution

    |

  15. Arrange the following carbanions in order of their decreasing stabilit...

    Text Solution

    |

  16. KI in acetone, undergoes S(N)2 reaction with each of P,Q,R and S. The ...

    Text Solution

    |

  17. In S(N)2 reaction, the correct order of reactivity for following compo...

    Text Solution

    |

  18. In an S(N)1reaction on chiral centres, there is

    Text Solution

    |

  19. Identify the set of reagents/ reaction condition ‘X’ and ‘Y’ in the fo...

    Text Solution

    |

  20. The ease of dehydrohalogenation of alkyl halide with alcoholic KOH is-

    Text Solution

    |