The carbocation intermediate formed in step 1 is resonance-stabilized. Drawa different resonance structure (using the carbon skeleton provided) that makes progress toward the desired product, and add curved arrow(s) to convert the first resonance structure into the second one. CH CH, HC

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Diol

In chemistry there are so many chemical compounds that have a hydroxyl group but a chemical compound having two hydroxyl groups (-OH) is termed as a diol. It also implies the presence of two alcohols whereas polyols contain two or more than two hydroxyl groups (-OH). Glycol or 1,2-diol is an aliphatic diol that has two alcohol groups on adjacent carbon atoms. In industries, the most commonly used diol is ethylene glycol.