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Solution


Q.

Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R):

Assertion (A): Ketones give Seliwanoff’s test faster than Aldoses.

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

In the light of the above statements, choose the correct answer from the options given below:                     [2023]
1 Both (A) and (R) are true but (R) is not the correct explanation of (A).  
2 (A) is false but (R) is true.  
3 (A) is true but (R) is false.  
4 Both (A) and (R) are true and (R) is the correct explanation of (A).  

Ans.

(3)

Statement-1: Ketose (example: fructose) gives a fiery red solution at a faster rate than aldose.