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Two isomeric aromatic compounds A and B ...

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

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To solve the problem of identifying the two isomeric aromatic compounds A and B with the molecular formula C7H7OH, we can follow these steps: ### Step 1: Understand the Molecular Formula The given molecular formula is C7H7OH. This indicates that we have an aromatic compound (due to the presence of the benzene ring) with a hydroxyl group (-OH). ### Step 2: Identify Possible Isomers Since the compounds are isomeric, they will have the same molecular formula but different structural arrangements. The two main types of isomers we can consider are: - **Phenolic compounds**: where the -OH group is directly attached to a benzene ring. ...
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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 ?

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Knowledge Check

  • B gives red colouration with FeCl_(3) .

    A
    ` A " is " CH_(3)-underset(CH_(3))underset(|)(CH)-overset(O)overset(||)(C)-OH`
    B
    ` D " is " CH_(3)-underset(CH_(3))underset(|)(CH)-NH_(2)`
    C
    ` D " is " CH_(3)-underset(CH_(3))underset(|)(CH)-OH`
    D
    Both A and C

  • 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

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    An organic compound 'A' having molecular formula C_(6)H_(6)O gives a characeristic colour with aqueous FeCl_(3) solution. When 'A' is treated with CO_(2) and NaOH at 400 K under pressure, compound 'B' is obtained. The compound 'B' upon acidification gives compound 'C' which reacts with acetyl chloride to form 'D'. It is a polular pain killer. Deduce the structures of A, B, C and D.

    An organic compound 'A' having molecular formula C_(6)H_(10)O gives a characteristic colour with aqueous FeCl_(3) solution. When 'A' is treated with CO_(2) and NaOH at 400K under pressure. 'B' is obtained. B on acidification gives C when C treated with CH_(3)COCl gives a popular pain killer D. Deduce the strucutrues of A,B,C and D.

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    A compound with molecular formula C_(7)H_(16) shows optical isomerism, the compound will be:

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