Chemistry PYQ 145 of 152 · Biomolecules

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

  1. ABoth (A) and (R) are true and (R) is the correct explanation of (A)
  2. BBoth (A) and (R) are true but (R) is not the correct explanation of (A)
  3. C(A) is true but (R) is false
  4. D(A) is false but (R) is true

UPPSC 2020

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Correct answer: (b) Both (A) and (R) are true but (R) is not the correct explanation of (A)

Explanation

Invert sugar is sweeter than sucrose, so the Assertion is true.

It is formed by hydrolysis of sucrose into glucose and fructose, so the Reason is also true.

But hydrolysis explains its origin, not why it is sweeter (fructose is the sweetest sugar), so R does not explain A.

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