Home
Class 12
CHEMISTRY
(R ) -hexan -2-ol overset("conc.HX ") ra...

`(R )` -hexan -`2-ol overset("conc.HX ") rarr`
under `S_(N)2` conditions the product is

A

`100% (R )` -halide

B

`100%(S)`-halide

C

`75%(R )` and `25%(S)`

D

`75%(S)` and `(25%) (R )` halide

Text Solution

Verified by Experts

The correct Answer is:
B
Under `S_(N)2` conditions , the slow step is concerted and at no time does a carbocation form. The `X^(-)` bonds to the back side of the `C`, away from the departing `H_(2)O`, resulting in an `100%` inversion.
Promotional Banner

Topper's Solved these Questions

  • ALCOHOL, PHENOL AND ETHERS

    R SHARMA|Exercise Follow -Up Test -7|10 Videos

  • ALCOHOL, PHENOL AND ETHERS

    R SHARMA|Exercise Follow -Up Test -8|8 Videos

  • ALCOHOL, PHENOL AND ETHERS

    R SHARMA|Exercise Follow -Up Test -5|14 Videos

  • AMINES

    R SHARMA|Exercise Archives|36 Videos

Similar Questions

Explore conceptually related problems

(R ) -2- Octy tosylate is sololyzed in water under ideal S_(N^(1)) conditions ,the product (s) will be :

overset("High conc. of base")rarr ? + ? The products are:

overset("Conc". H_(2)SO_(4))rarr(A)

CH_(3)-overset(O)overset(||)C-CH_(2)overset("Conc")underset(HNO_(3))to Product The product is

underset (Conc. H_(2)SO_(4))overset(Conc. HNO_(3))toP underset(Delta)overset(Sn, Conc. HCl)toQ The product Q is :

2NH_3 to overset(H^+)(rarr)overset(NaOBr) product is:

Knowledge Check

  • (R ) -2- Octy tosylate is sololyzed in water under ideal S_(N^(1)) conditions ,the product (s) will be :

    A
    R-2- octanol and S-2 octanol in a 1:1 ratio
    B
    R-2- pctanol and S-2 octanol in 1.5:1 ratio
    C
    R-2- octanol only
    D
    S-2-octanol only

  • overset("High conc. of base")rarr ? + ? The products are:

    A
    B
    C
    D

  • SO_(2) + Cl_(2) overset("sunlight") rarr Product. The product is -

    A
    Chloroform
    B
    Sulphuryl chloride
    C
    Sulphuric acid
    D
    None of these
    • R SHARMA-ALCOHOL, PHENOL AND ETHERS-Follow -Up Test -6
    1. (R ) -hexan -2-ol overset("conc.HX ") rarr under S(N)2 conditions t...

      Text Solution

      |

    2. The major product formed in the reaction CH(3)-underset(OH)underse...

      Text Solution

      |

    3. Trityl chloride (Ph(3)C Cl) is allowed to react with ethyl alcohol in ...

      Text Solution

      |

    4. Lucas reagent produces cloudiness immediately with

      Text Solution

      |

    5. What will be the order of reactivity of the following alcohols towards...

      Text Solution

      |

    6. By which of the following sequence of steps can the alcohol RCH(2)CH(...

      Text Solution

      |

    7. Ethyl alcohol is heated with conc.H(2)SO(4).The product formed is

      Text Solution

      |

    8. HBr reacts slowest with

      Text Solution

      |

    9. 3-Methylbutan-2-ol on reaction with HCl gives predominantly

      Text Solution

      |

    10. In the reaction CH(3)-underset(CH(3))underset(|)overset(CH(3))overse...

      Text Solution

      |

    11. Which of the following reaction of (S)-CH(3)CHD(OH) proceeds with rete...

      Text Solution

      |

    12. Which of th efollowing alcohols are excepted to react with hydrogen ha...

      Text Solution

      |

    13. Which of the following statements is not correct ?

      Text Solution

      |

    14. Which of the following reagents is preferred to synthesize neopentryl ...

      Text Solution

      |

    15. When but -3-en-2-ol reacts with aq HBr , we get

      Text Solution

      |

    16. The product of the reaction of Ph(2)CHCh(2)OH with HBr is

      Text Solution

      |

    17. Place the following alcohols in decreasing order of rate of dehydratio...

      Text Solution

      |

    18. Place the following benzyl alcohols in decreasing order of reaction ra...

      Text Solution

      |