JEE Mains Chemistry Past PapershardMCQ SINGLE

Given below are two statements: one is labelled as Assertion (A) and the other is labelled as ReasonJEE Mains Chemistry Past Papers Chemistry Question

Question

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) Both (A) and (R) are true but (R) is not the correct explanation of (A) (B) (A) is false but (R) is true (C) (A) is true but (R) is false (D) Both (A) and (R) are true and (R) is the correct explanation of (A)

Answer: C

💡 Solution & Explanation

Statement-1: Ketose-(example Fructose) gives fiery red solution at faster rate than aldose Statement-2: Ketose on dehydration with acid (HCl) give furfural which on further heating with resorcinol give red colour in Seliwanoff’s test. | JEE(Main) 2023 | DATE : 30-01-2023 (SHIFT-1) | PAPER-1 | OFFICIAL PAPER | CHEMISTRY PAGE # 5

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