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Among the given hydroxyl compound how many will give precipitate immediately when treated with concentrated hydrochloric acid and anhydrous zinc chloride. 3-methyl-2-butanol, 3-methyl-1-butanol, 1-butanol, 2-methyl-2-butanol, 2,3-dimethyl-2-butanol, 2,3-dimcthyl-1-butanol |
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Answer» `underset(3-"methyl-2-BUTANOL")CH_(3)-underset(CH_(3))underset(|)CH-underset(OH)underset(|)CH, underset("2-methyl-2-butanol")(CH_(3)-CH_(2)-overset(CH_(3))underset(|)underset(OH)underset(|)C-CH_(3)` `underset("3-methyl-butanol")(CH_(3)-underset(CH_(3))underset(|)CH-CH_(2)-CH_(2)OH, underset("2,3-dimethyl-1-butanol")(CH_(3)-overset(CH_(3))overset(|)CH-overset(CH_(3))overset(|)CH-CH_(2)OH)` `underset(1^(@) "ALCOHOL")underset(1-"butanol")(CH_(3)-CH_(2)-CH_(2)-CH_(2)OH), underset(3^(@)"alcohol")underset("2,3-dimethyl-2-butanol")(CH_(3)-overset(CH_(3))overset(|)(CH) - underset(OH)underset(|)overset(CH_(3))overset(|)C-CH_(3)` 2,3-dimethyl -2-butanol and 2-methyl-2-butanol being tertiary alcohol gives PRECIPITATE immediately with cone. HCl and anhydrous `ZnCl_(2)`. |
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