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- Can someone please help me with this? The quesion is: Draw a reasonable mechanism for this reaction. All compounds involved in each stage of the mechanism must be enclosed in a box, and each box must be connected to the next one with a straight arrow. Use electron-flow arrows to show the movement of electrons in each step.This is about reaction of glycol. Pinacol rearrangement reaction 1. Find the mechanism of reaction.How does each of the tripling [RX] changes affect the rate of an E2 reaction?