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An organic compound (X) with molecular ...

An organic compound (X) with molecular formula `C_8H_8O` forms an orange red precipitate with 2, 4 - DNP regent and resonds iodoform test. It neither decolourises Baeyer's reagent or bromine water and also it neither reduces Tollen's reagent or Fehling's reagent. Compound (X) gives a carboxylic acid (Y) with molecular formula `C_7H_6O_2` on drastic oxidation with chromic acid . Give the equations.

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An organic compound (A) with molecular formula C_(8)H_(8)O forms an orange-red precipitate with 2,4-DNP reagent and gives yellow precipitate on heating with iodine in the presence of sodium hydroxide. It neither reduces Tollens’ or Fehlings’ reagent, nor does it decolourise bromine water or Baeyer’s reagent. On drastic oxidation with chromic acid, it gives a carboxylic acid (B) having molecular formula C_(7)H_(6)O_(2) . Identify the compounds (A) and (B) and explain the reactions involved.

An organic compound (A) with molecular formula C_(8)H_(8)O forms an orange-red precipitate with, 2,4-DNP reagent and gives yellow precipitate on heating with iodine in the presence of sodium hydroxide . It neither reduces Tollens or Fehlings reagent, nor does it decolourise bromine wateror Baeyers reagent .On drastic oxidation with chromic acid, it gives a carboxylic acid (B) having molecular formula C_(7)H_(6)O_(2) . Identify the compounds (A) and (B) and explain the reactions involved.

Knowledge Check

  • An organic compound with molecular formula C_(3)H_(5)N on hydrolysis gives an acid. The acid on heating with N_(3)H and conc. H_(2)SO_(4) gives

    A
    Propanamide
    B
    Ethyl acetate
    C
    Methyl amine
    D
    Ethyl amine

  • An organic compounds 'X' with the molecular formula C_3H_6O , reacts with CH_3 M g Br and then hydrolised to give 'Y' ,Y gives turbidity immediately with Lucas reagent Structural formula of compounds X and Y are :

    A
    `{:(X, , Y) ,( CH_3CH_2CHO, , CH_3CH_2CH(OH) CH_3 "):}`
    B
    `{:(X, , Y) ,( CH_3COCH_3, , (CH_3)_3COH "):}`
    C
    `{:(X, , Y) ,( CH_3CH_2CHO, , (CH_3)_3COH "):}`
    D
    `{:(X, , Y) ,( CH_3COCH_3, , CH_3CH_2CH(OH) CH_3 "):}`

  • An organic compound 'X' having molecular formula C_(5)H_(10) yields phenylhydrazone and gives negative response to the iodoform test and Tollen's test. It produces n-pentane on reduction. 'X' could be

    A
    3-pentanone
    B
    n-amyl alcohol
    C
    pentanal
    D
    2-pentanone

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    An organic acid with molecular formula C_(8)H_(8)O_(2) on decarboxylation forms Toluene. Idnetify the organic acid.

    An organic compound 'X' with the molecular formula C_3H_6O , reacts with CH_3 MgBr and then hydrolised to give 'Y'. Y gives turbidity immediately with Lucas reagent. Structural formula of compounds X and Y are :

    An organic compound with molecular formula C_(9) H_(10) O forms derivative with 2 , 4-dinitrophenyl hydrazine , reduces Tollen's reagent and also undergoes Cannizaro reaction . On vigorous oxidation it forms phthalic acid . Identify that compound .

    An organic compound with molecular formula C_2H_4O_2 produces brisk effervescence on addition of sodium carbonate / bicarbonate. Answer the following : Name the gas evolved.

    An organic compounds 'X' with the molecular formula C_4H_11 N reacts with C_6H_5 SO_2Cl and forms the compound 'Y' .If 'Y' is soluble in alkali ,''X' may be

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