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JEE Main & Advanced Sample Paper JEE Main Sample Paper-36

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

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


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