Determine whether each of the following molecules is a hemiacetal, acetal, or neither and select the appropriate box in the table. CH₂ CH₂ O C=0 CH2O—CH, CH3 HO CH3 CH₂ O CH3 OH X O OH HỌ–C-0—CH,—CH, CH3 Ⓒhemiacetal O acetal O neither Ohemiacetal O acetal O neither Ohemiacetal O acetal O neither O hemiacetal O acetal Oneither X 5

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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.