BHU PMT BHU PMT Solved Paper-2004

  • question_answer
    A reagent used to test for unsaturation of alkene is:

    A)  cone. \[{{H}_{2}}S{{O}_{4}}\]

    B)  ammoniacal \[CuC{{l}_{2}}\]

    C)  ammoniacal \[AgN{{O}_{3}}\]

    D)  solution of\[B{{r}_{2}}\]in\[CC{{l}_{4}}\]

    Correct Answer: D

    Solution :

                     Ammoniacal\[AgN{{O}_{3}}\]and ammoniacal cuprous chloride are used to test the presence of terminal alkyne. \[B{{r}_{2}}\]in\[CC{{l}_{4}}\]is used to test the presence of unsaturation in organic compound. Organic compounds having double or triple bond decolourise the reddish/brown + colour of bromine water.


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