Alcohols L6

Locate all of the alcohol functional groups on this molecule

Place these molecules in order of increasing boiling point

• ethanol

• ethane

• benzoic acid

• ethanal

• ethanoic acid

Concentrated phosphoric acid will...

• eliminate water from an alcohol to give an alkene

• eliminate water from an alcohol to give an alkane

• oxidise a primary alcohol to a carboxylic acid

• oxidise a primary alcohol to an aldehyde

Potassium dichromate(VI) and dilute sulfuric acid, when heated to reflux, will...

• eliminate water from an alcohol to give an alkene

• eliminate water from an alcohol to give an alkane

• oxidise a primary alcohol to a carboxylic acid

• oxidise a primary alcohol to an aldehyde

What is the correct oxidising agent to oxidise an alcohol?

• potassium dichromate(VII) and sulfuric acid

• potassium dichromate(VI) and hydrochloric acid

• potassium dichromate(VI) and sulfuric acid

• potassium chromate(VI) and sulfuric acid

• potassium chromate(VI) and hydrochloric acid

Butan-1,3-diol is heated to reflux with potassium dichromate(VI) and sulfuric acid. What functional groups will the product contain?

• One aldehyde and one ketone

• Two ketones

• One ketone and one carboxylic acid

• Two carboxylic acids

What best describes the function of anti-bumping granules?

• They are anti-bumping

• They provide a high surface area, rough surface for rapid nucleation of many bubble to promote smooth, safe boiling

• They give the reactant molecules some company

• They provide a large surface area, upon which the reaction can occur more quickly

Refluxing allows reactions to reach completion because extended boiling time is provided by the fact that volatile reagents, products and solvents are condensed and returned to the reaction mixture.

• True

• False

An aldehyde can be prepared from a primary alcohol by distilling the aldehyde product as it forms.

• True

• False

Draw a skeletal formula for butan-1,3-diol