Given the structure of ascorbic acid (vitamin C):(a) Is ascorbic acid a carboxylic acid?(b) Compare the acid strength of ascorbic acid (pKa = 4.71) with acetic acid.(c) Predict which proton in ascorbic acid is the most acidic.(d) Draw the form of ascorbic acid that is present in the body (aqueous solution, pH = 7.4)

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A: pKa = -logKa

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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.