Sucrose is converted to a mixture of glucose and fructose in a pseudo first order process under alkaline… · ABC26PH0341
Subject: Physical Chemistry · Chapter: Chemical Kinetics · Topic: Chemical Kinetics – General · Exam: GATE 2005-2021 · Marks: 2 · Difficulty: Medium
Sucrose is converted to a mixture of glucose and fructose in a pseudo first order process under alkaline conditions. The reaction has a halflife of 28.4 min. The time required for the reduction of a 8.0 mM sample of sucrose to 1.0 mM is
(a)56.8 min
(b)170.4 min
(c)85.2 min
(d)227.2 min
Answer
Answer: C ✓ checked by 4AB · confidence high
Explanation
8 mM → 1 mM is three half-lives (8 → 4 → 2 → 1): 3 × 28.4 = 85.2 min.