During the precise polarimetric analytical study encompassing the catalytic inversion of isolated ca — Chemical Kinetics Chemistry Question
Question
During the precise polarimetric analytical study encompassing the catalytic inversion of isolated cane sugar (a textbook pseudo-first order mechanism), assuming $r_0$, $r_t$, and $r_\infty$ denote the experimentally registered angles of optical rotation respectively at times $t=0$, $t=t$, and infinite time. Which of the following analytical observations hold robust truth?
💡 Solution & Explanation
A is true; initially, only dextrorotatory sucrose populates the vessel. B and C correctly characterize the linear dependencies used universally to derive the rate constant: $(r_t - r_\infty) \propto (a-x)$ and $(r_0 - r_\infty) \propto a$. D is factually validated by organic rules; while sucrose heavily twists light right (dextro), the end inversion mixture of glucose/fructose favors the powerful negative twist of fructose (laevo), terminating firmly negative at infinity.