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State PCS PYQPrelims 2020

UPPCS · Question 105

Given below are two statements, one is labelled as Assertion (A) and the other as Reason (R): Assertion (A): Invert sugar is sweeter than sucrose. Reason (R): Invert sugar is obtained by the hydrolysis of sucrose. Select the correct answer from the codes given below:

  1. Both (A) and (R) are true and (R) is the correct explanation of (A)
  2. Both (A) and (R) are 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
Show answer & explanation

Answer: (B) Both (A) and (R) are true, but (R) is not the correct explanation of (A)

Explanation

Per the official key, both are true but R does not explain A. Invert sugar (glucose + fructose from hydrolysis of sucrose) is sweeter because fructose is very sweet; hydrolysis alone does not explain the sweetness.