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JEE Main & Advanced Sample Paper JEE Main Sample Paper-8

  • question_answer
    \[HC\equiv CH\xrightarrow[{{H}_{2}}S{{O}_{4}}]{HgS{{O}_{4}}}(A)\xrightarrow[5{}^\circ C]{dil.\,\,O{{H}^{\Theta }}}(B)\]. Give the IUPAC name of "B" is

    A)  2-butanal                           

    B)  3-hydroxy butanal

    C)  3-formyl-2-propanol     

    D)  4-oxo-2-propanol

    Correct Answer: B

    Solution :

     \[HC\equiv CH\xrightarrow[{{H}_{2}}S{{O}_{4}}]{HgS{{O}_{4}}}C{{H}_{3}}-CHO\xrightarrow[{}]{aldol}\]\[C{{H}_{3}}-\underset{3}{\overset{\begin{smallmatrix}  OH \\  | \end{smallmatrix}}{\mathop{CH}}}\,-\underset{2}{\mathop{C}}\,{{H}_{2}}-\underset{2}{\mathop{C}}\,HO\](3-hydroxy butanal)


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