Multiple choice

Directions: The followings item consist of two statements, one labeled as the 'Assertion (A)' and the other as 'Reason (R)'. You are to examine these two statements carefully and select the answer to these items using the codes given below.

Assertion (A) : Sucrose reduces Cu++ to Cu++. Reason (R) : Sugar having a free aldehyde or ketone reduce Cu++ to Cu++.

  1. Both A and R are individually true and R is the correct explanation of A

  2. Both A and R are individually true but R is NOT the correct explanation of A

  3. A is true but R is false

  4. A is false but R is true

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

This question contains a fundamental error in the Assertion. Sucrose does NOT reduce Cu(II) to Cu(II) - this makes no chemical sense. The correct reaction is reduction of Cu(II) to Cu(I) in Benedict's or Fehling's test. Sucrose (a non-reducing sugar) cannot reduce Cu(II) because it lacks free aldehyde or ketone groups. Both Assertion and Reason contain scientific errors. The correct answer is D because both statements are scientifically false.

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