18. Draw in the curved arrows steps 1-4 and fill in the box with the major organic product of the 5th step following exhaustive methylation of an amine. F NH₂ -CH₂ H H₂C-I ~

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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.