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JEE Main & Advanced Sample Paper JEE Main Sample Paper-3

  • question_answer
    An organic compound 'X' on ozonolysis followed by reduction with \[Zn/{{H}_{2}}O\]gives 2 moles of \[H-\overset{\overset{O}{\mathop{|\,\,|}}\,}{\mathop{C}}\,-H\]and \[H-\overset{\overset{O}{\mathop{|\,\,|}}\,}{\mathop{C}}\,-C{{H}_{2}}-\overset{\overset{O}{\mathop{|\,\,|}}\,}{\mathop{C}}\,-H.\] ?X? is

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

    B)  \[C{{H}_{2}}=CH-C{{H}_{2}}-C{{H}_{2}}-CH=C{{H}_{2}}\]

    C)   \[H-C\equiv C-C\equiv C-H\]

    D)  \[C{{H}_{2}}=CH-CH=C{{H}_{2}}\]

    Correct Answer: A

    Solution :

     \[C{{H}_{2}}=CH-C{{H}_{2}}-CH=C{{H}_{2}}\xrightarrow[{}]{{{O}_{3}}}\] \[HOOC-C{{H}_{2}}^{-}COOH+2HCOOH\] \[2HCHO+OHC-C{{H}_{2}}-CHO\xleftarrow[\operatorname{Re}duction]{Zn/{{H}_{2}}O}|\]


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