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- 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. Reaso
- #Joint Entrance Examination Main
- #Chemistry
- #Engineering
- #Organic Compounds containing Oxygen
- #Class 12
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 -elimination followed by formation of furfural.
In the light of the above statements, choose the correct answer from the options given below :
(A) is false but (R) is true
(A) is true but (R) is false
Both (A) and (R) are true but (R) is not the correct explanation of (A)
Both (A) and (R) are true and (R) is the correct explanation of (A)
Answers (1)
Seliwanoff’s test – Test to differentiate for ketose and aldose.
In this keto hexose are more rapidly dehydrated to form hydroxy methyl furfural when heated in acidic medium which on condensation with resorcinol, as result brown red colored complex is formed.
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