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A compound X of the formula C(2)H(6)O on...

A compound X of the formula `C_(2)H_(6)O` on reaction with Na metal gave Y, X also reacts with `PC1_(5)` to give Z the product obtained in the reaction between Y and Z is

A

`CH_(3)CHO`

B

`CH_(3)COCH_(3)`

C

`CH_(3)COOC_(2)H_(5)`

D

`C_(2)H_(5)OC_(2)H_(5)`

Text Solution

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The correct Answer is:
D
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A compound C (molecular formula, C_(2)H_(4)O_(2) ) reacts with Na metal to form a compounds R and evolves a gas which burns with a pop sound. Compound C on treatment with an alcohol A in the presence of an acid form a sweet smelling compound S (molecular formula, C_(3)H_(6)O_(2)) . On addition of NaOH to C, it also gives R and water.S on treatment with NaOH solution gives back R and A. Identify C,R,A,S and write down the reactions involved.

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Knowledge Check

  • An organic compound with formula C_(4)H_(6)(X) gives precipitate of X and reacts with 1 mole of Br_(2) to form 1, 4-dibromo-2-butene. X and Y are

    A
    `CH_(3)CH_(2)-C-=CH` and `CH_(2)=CH-CH=CH_(2)`
    B
    `CH_(3)-=C CH_(3)` and `CH_(3)CH_(2)C-=CH`
    C
    `CH_(3)C-=C CH_(3)` and `CH_(3)CH=C=CH_(2)`
    D

  • A compound ''X'' of the formula C_(3)H_(8)O gives iodoform test. On oxidation with acidified K_(2)Cr_(2)O_(7)X gave Y. Y also gives iodogorm test. Then X and Y are

    A
    `CH_(3)CH_(2)CH_(2)OH, CH_(3)CH_(2)CHO`
    B
    `CH_(3)CHOHCH_(3), CH_(3)COCH_(3)`
    C
    `CH_(3)CH_(2)CHO, CH_(3)CH_(2)CH_(2)OH`
    D
    `CH_(3)COCH_(3), CH_(3)CHOHCH_(3)`

  • An organic compound (X) with molecular formula C_(3)H_(6)O is not readily oxidised. On reduction it gives C_(3)H_(8)O (Y) which reacts with HBr to give alkyl bromide (Z) which is converted to Grignard reagent. Grignard reagent reacts with (X) to give 2 , 3-dimethylbutan-2-ol. (X), (Y) and (Z) repectively are.

    A
    `CH_(3)COCH_(3), CH_(3)CH_(2)CH_(2)OH, CH_(3)CH(Br)CH_(3)`
    B
    `CH_(3)CH_(2)CHO, CH_(3)CH=CH_(2), CH_(3)CH(Br)CH_(3)`
    C
    `CH_(3)COCH_(3),CH_(3)CH(OH)CH_(3), CH_(3)CH(Br)CH_(3)`
    D
    `CH_(3)CH_(2)CHO, CH_(3)CH_(2)CH_(2)OH, CH_(3)CH_(2)CH_(2)Br`

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