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NEET-XII-Chemistry

exam-1 year:2016

with Solutions -
Qstn# 47 Prvs-QstnNext-Qstn
  • #47
    In the reaction

    X and Y are :
    (1) X = 1-Butyne ; Y = 3-Hexyne
    (2) X = 2-Butyne ; Y = 3-Hexyne
    (3) X = 2-Butyne ; Y = 2-Hexyne
    (4) X = 1-Butyne ; Y = 2-Hexyne
    digAnsr:   1
    Ans : (1)
    Sol. CH CH NaNH2liq. NH3 CH CNa
     CH3 CH2 Br CH C CH2 CH3
    (X)
    CH3 CH2 C C CH2 CH3
    CH3 CH2 Br CH3 CH2 C CNa
    
    NaNH2 liq. NH3
    1-Butyne
    3-Hexyne