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NEET-XII-Chemistry

exam-2 year:2016

with Solutions -
Qstn# 147 Prvs-QstnNext-Qstn
  • #147
    Which of the following compounds shall not
    produced propene by reaction with HBr followed
    by elimination of direct only elimination reaction ?
    (1) H2C=C=O
    (2)
    (3)
    (4)
    digAnsr:   1
    Ans : (1)
    Sol.
    CH2 CH2
    C
    H2
    BrH
    CH3CH2CH2
    Br
    Elimination
    CH3 CH CH2
    BrH Elimination
    CH3 CH CH2CH3—CH2—CH2—OH
    BrH
    CH2 C OH
    Br
    CH3 C Br
    O
    CH2=C=O
    CH3-CH2-CH2-Br E lim ination CH3-CH=CH2