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Two isomeric compounds X and Y have the ...

Two isomeric compounds X and Y have the molecular formula `C_(7)H_(7)OH`. X gives purple colour with `FeCl_(3)` while Y does not. What are X and Y ?

Text Solution

Verified by Experts

Since , X and Y on hydrogenation give cyclohexane as the only product, therefore X and Y must be cyclohexadienes . The two possible cyclohexadienes are :

Whereas reductive ozonolysis of X will give two molecules of propane-1,3-dial, reductive ozonolysis of Y will give succinaldehyde and glyoxal as shown below :
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Knowledge Check

  • How many isomeric alkanes having the molecular formula C_(3)H_(7) - are possible?

    A
    `2`
    B
    `3`
    C
    `4`
    D
    `1`

  • Which of the following compounds does not give purple colour with FeCl_(3) ?

    A
    B
    C
    D

  • Two isomeric halo alkenes A and B have molecular formula C_(5)H_(9)Cl . A gives optically inactive compound while B gives optically active compound in hydrogenation. The two isomers respectively are

    A
    3 - chloro -2- pentene and 1 - chloro -2- pentene
    B
    4 - chloro -1- pentene and 2 - chloro -2- pentene
    C
    3 - chloro -1- pentene and 4 - chloro -2- pentene
    D
    1 - chloro -1- pentene and 5 - chloro -1- pentene