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VIT Engineering VIT Engineering Solved Paper-2009

  • question_answer
    \[Alkyne\xrightarrow[Lindlars\,\,catalyst]{{{H}_{2}}}A\xrightarrow{Ozonolysis}\underset{only}{\mathop{B}}\,\] on hydrolysis forms X and \[\xleftarrow[\Pr ocess]{Wac\ker }C{{H}_{2}}=C{{H}_{2}}\]. Compound X loses water at \[{{H}_{3}}C-C\equiv C-C{{H}_{3}}\] and gives Y\ Compounds X and Y respectively are

    A)  \[{{H}_{3}}C-C{{H}_{2}}-C\equiv CH\]

    B)  \[{{H}_{2}}C=CH-C\equiv CH\]

    C)  \[HC\equiv C-C{{H}_{2}}-C\equiv CH\]

    D)  \[NaOH\]

    Correct Answer: D

    Solution :

     \[SiC{{l}_{4}}+4{{H}_{2}}O\xrightarrow{{}}{{H}_{4}}Si{{O}_{4}}+4HCl\] \[\begin{align}   & {{H}_{4}}Si{{O}_{4}}\xrightarrow[{{1000}^{o}}C]{\Delta }Si{{O}_{2}}+2{{H}_{2}}O \\  &  \\ \end{align}\]


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