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Chemical Properties of Alcohol

An organic co...

Question

An organic compound $A (C_{10} H_{18} O_{8})$ on treatment with excess of $C H_{3} C O C l$ gives a fully acetylated product whose molar mass is found to be $518 g/mol$ . How many hydroxyl functional groups are present in A?

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Solution

Mass gain due to incoporation of one acetyl group = 59 - 17 = 42
Net mass gain due to acetylation = 518 - 266 = 252
Hence, six hydroxy groups must be present. (6 $\times$ 42 = 252)

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