Give chemical test to distinguish between propanal and propanone

Asked by admin @ 17/08/2021 in Chemistry viewed by 347 People

Give a chemical test to distinguish between propanal and propanone.

Answered by admin @ 17/08/2021

HELLO DEAR,

This can be distinguished by the idoform test.

$\bold{Iodoform\; test.}$ propanone (CH3COCH3) contains the grouping linked —COCH3 to carbon and hence when warmed with sodium hypoiodite (NaOI), i.e. I2/NaOH , it gives yellow PPT. of Iodoform in contrast, propanol does not contain the grouping CH3CHOH— (attached to either H or C) and hence does not respond to Iodoform test.

I HOPE IT'S HELP YOU DEAR,
THANKS

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