Which of the following compounds do not produce pink colour with schiffs reagent?
(a) formaldehyde (b) propan-2-one (c) pentan-3-one (d) both (b) and (c)
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The following compounds do not produce pink colour with schiffs reagent
(d) both (b) and (c)
Explanation:
Schiff's reagent is a dye (solution ) of p-rosaniline hydrogen chloride .it is composed of rosaniline and sulfurous acid dissolved in water.
schiff's reagent is used to confirm the presence of aldehyde and ketone functional group.
Aliphatic aldehyde chemically reacts with the reagent to give pink colour .
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Propan-2-one and propan -3-one don't produce pink color with schiffs reagent
Explanation:
Schiffs test is used to detect the presence of organic aldehydes that are found from the biological tissue.
It is also used for quantitative test of aldehydes.
Formaldehyde contain aldehyde thus it can produce pink color which schiffs test is done with it.
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