Chemistry - Biomolecules Question with Solution | TestHub

ChemistryBiomoleculesCARBOHYDRATESMedium2 minQB
ChemistryMediumsingle choice

Given below are two statements: one is labelled as

Assertion (A) and the other is labelled as Reason (R)

Assertion (A) : Ketoses give Seliwanoff's test faster than Aldoses .

Reason (R):Ketoses undergo β-elimination followed by formation of furfural.

In the light of the above statements, choose the correct answer from the options given below:

 

Options:

Answer:
C
Solution:

Seliwanoff's test is a differentiating test for Ketose and aldose. This test relies on the principle that the keto hexose are more rapidly dehydrated to form 5-hydroxy methyl furfural when heated in acidic medium which on condensation with resorcinol, Cherry red or brown red coloured complex is formed rapidly indicating a positive test

Stream:JEESubject:ChemistryTopic:BiomoleculesSubtopic:CARBOHYDRATES
2mℹ️ Source: QB

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