CHEMICAL REACTIONS OF ALCOHOLS

What is the functional group of alcohols?

• Alkoxy

• Hydroxyl

• Carboxyl

• Carbonyl

What is the chemical test to distinguish class of alcohols (primary, secondary and tertiary alcohol)

• Baeyer's Test

• Tollens' Test

• Iodoform Test

• Lucas Test

What is the reagent/condition can be used to produce alcohols from alkenes?

• conc H₂SO₄ and heated

• Na

• H₂/ Pt

• H₂O / H⁺

Which compound of alcohols is highest boiling point?

• 1-butanol

• 2-methyl-2-butanol

• hexanol

• 1,4-butanediol

Why do alcohols have higher boiling points than alkanes?

• Because can form Van der Waal's forces between molecules

• Because can form hydrogen bond forces between molecules

• Because can form dimer structures between molecules

• Because can form covalent bond between molecules

Which class of alcohols can produce ketones when reacted with acidified KMnO₄ and heated?

• primary alcohol

• secondary alcohol

• tertiary alcohol

• all the class of alcohols

Compound Z, is one of class of alcohols. When alcohol Z is reacted with conc HCl and ZnCl₂, the cloudy solution appear immediately. But when compound Z react with acidified KMnO₄ heated, no reaction occur. What is the compound Z?

• Primary alcohol

• Secondary alcohol

• Tertiary alcohol

• Quaternary alcohol

Why is butan-2-ol more soluble in water than octan-2-ol. What is the key factor?

• Because of intermolecular forces

• Because of molecular weight

• Because of surface areas

• Because of increased hydrophobic areas

The name of this compound is:

• heptan-2-one
• 2-hexanone
• 2-heptanone
• pentan-2-one

What observations would you expect to see in a positive Fehlings test for an aldehyde?

• blue solution to brick-red solution
• blue solid to brick-red solution
• blue solution to brick-red solid
• blue solid to brick-red solid