2. Solved Papers
  3. BHU PMT

BHU PMT BHU PMT (Screening) Solved Paper-2008

  • question_answer
    For the reaction: \[{{C}_{2}}{{H}_{5}}OH+HX\xrightarrow[(anhyd.)]{ZnC{{l}_{2}}}{{C}_{2}}{{H}_{5}}X+{{H}_{2}}O\] The order of reactivity of HX is shown by

    A) \[HBr>HCl>HI\]                

    B) \[HI>HCl>HBr\]

    C)  \[HI>HBr>HCl\]               

    D) \[HCl>HBr>HI\]

    Correct Answer: B

    Solution :

                     The order of reactivity of halogen acid with alcohol is \[HI>HBr>HCl\] This is due to the fact that F ion is a better nucleophile than \[B{{r}^{-}}\] ion which, in turn, is better than\[C{{l}^{-}}\]ion.


You need to login to perform this action.
You will be redirected in 3 sec spinner