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How will you distinguish between propana...

How will you distinguish between propanal and propanone?

Text Solution

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With the help of Tollen's reagent test or Fehling reagent test.
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(a) Write the chemical equation for the reaction involved in Cannizzaro reaction. (b) Draw the structure of the semicarbazone of ethanal. (c ) Why pKa of F-CH_(2) -COOH is lower than that of Cl-CH_(2)-COOH ? (d) Write the product in the following reaction : CH_(3) - CH = CH - CH_(2) CN underset((ii) H_(2)O)overset((i) DIBAl-H)rarr (e) How can you distinguish between propanal and propanone?

(A) Write the chemical equation for the reaction involved in Cannizzaro reaction. (b) Draw the structure of the semicarbazone of ethanal. (c ) Why pK_(a) of F- CH_(2) - COOH is lower than that of Cl - CH_(2) -COOH ? (d) Write the product in the following reaction : CH_(3) -CH= CH- CH_(2) CN underset((ii) H_(2)O)overset((i)DIBAL-H)(rarr) (e ) How can you distinguish between propanal and propanone ?

Knowledge Check

  • Which of the following does not provide any distinction between propanal and propanone ?

    A
    Grignard's reagent
    B
    Tollen's reagent
    C
    Schiff's reagent
    D
    Sodium bisulphite.

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