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

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

`2`

`3`

`4`

`1`

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

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

3 - chloro -2- pentene and 1 - chloro -2- pentene

4 - chloro -1- pentene and 2 - chloro -2- pentene

3 - chloro -1- pentene and 4 - chloro -2- pentene

1 - chloro -1- pentene and 5 - chloro -1- pentene