Draw the structure of the organic reactant/s or product/s of the following reactions: Zn(Hg) conc. HCI KCN HCN (2) NHNH, H (1) -H₂O (4)

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Q: 3. Calculate AG for the dissolution of Ca(OH)2 at room temperature and 100 °C.

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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.