1.

Assertion (A) : Aldehydes are converted into aldols in the presence of concentrated alkali. Reason (R) : Tollen's reagent can distinguish between aldehydes and ketones but Fehling reagent cannot.

Answer»

Both Assertion (A) and REASON (R) are correct statements, and Reason (R) is the correct EXPLANATION of the Assertion (A). 
Both Assertion (A) and Reason (R) are correct statements, but Reason (R) is not the correct explanation of the Assertion (A). 
Assertion (A) is correct, but Reason (R) is INCORRECT STATEMENT
Assertion (A) is incorrect, but Reason (R) is correct statement

Answer :D


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