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An alcohol was soluble in water. When treated with potassium dichromate (chromic

ID: 918951 • Letter: A

Question

An alcohol was soluble in water. When treated with potassium dichromate (chromic acid oxidation), the color changed from orange to Hue-green. With the Lucas reagent, the solution turned cloudy after about seven minutes. The iodoform test gave a seikm fluffy precipitate after gentle heating. From the list below circle all the compounds that would show such behavior cyclohexanol CH_3CH_2CH_2OH CH_2OH tert-butyl alcohol 3-pentanol 2-butanol isopropy I alcohol 2-methyl-2-pentanol In the preparation of cyclohexene by healing cyclohexanol with H_2SO_4. a mixture of water and cyclohexene distilled over. This mixture was saturated with NaCI and then NaHCO_3 was added. What is the purpose of adding each of these two reagents?

Explanation / Answer

An alcohol was soluble in water. When treated with potassium dichromate (chromic

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