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An aromatic compound A on treatment with...

An aromatic compound A on treatment with aqueous ammonia and heating forms compound B which on heating with `Br_(2)` and KOH forms a compound C of molecular formula `C_(6)H_(7)N`. Write the structures and IUPAC names of compounds A, B and C.

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It is given that compound C having the molecular formula `C_(6)H_(7)N` is formed by heating compound b with `Br_(2)` and KOH. This is a Hofmann bromamide degradation reaction. Therefore, compound B is an amide and compound C is an amine. The only amine having the molecular formula `C_(6)H_(7)N` is aniline `(C_(6)H_(5)NH_(2))`. Therefore, compound B (from which C is formed) must be benzamide, `(C_(6)H_(5)CONH_(2))`. Further, benzamide is formed by heating compound A with aqueous ammonia therefore, compound A must be benzoic acid `(C_(6)H_(5)COOH)`. The products formed can be explained with the help of the following reactions.
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An aromatic compound A on treatment with aqueous ammonia and heating forms compound B which on heating with Br_(2)andKOH forms a compound C of molecular formula C_(6)H_(7)N . Write the structures and IUPAC names of compaound A, B and C.

What class of compounds have a molecular formula, C_(n)H_(2n+2)O

Knowledge Check

  • The compound having the molecular formula C_3H_9N represents:

    A
    Trimethylamine
    B
    n-propylamine
    C
    Isopropylamine
    D
    All the three

  • A compound with molecular formula C_4H_6 may contain:

    A
    A double bond
    B
    Two triple bond
    C
    All single bonds
    D
    Two double bonds or a triple bond

  • Compound having molecular formula C_3H_6O may be :

    A
    Cyclic ether
    B
    Carbonyl compound
    C
    Unsaturated ether or unsaturated alcohol
    D
    All

    • Similar Questions

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    What class of compounds have a molecular formula, C_(n)H_(2n+2)O ?

    Benzoic acid on treatment with Br_(2) and FeBr_(3) gives the compound (A), which on treatment with NH_(3) gives the compound (B). The compound (B) on heating gives the compound (C). Write the structures of compounds (A), (B) and (C) in the above sequence of reactions.

    Give the structures and IUPAC names of monohydric phenols of molecular formula C_(7)H_(8)O .

    Benzoic acid on treatment with Br_2 and FeBr_3 gives the compound (A), which on tratment with NH_3 gives the compound(B). The compound (B) on heating gives the compound (C ). Write the structures of compounds (A), (B) and (C ) in the above sequence of reactions.

    Compound having molecular formula C_3H_6O may be :

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