IGCSE Alcohols

What is the name of this alcohol?

What is the molecular formula of propanol?

• C₃H₈O

• C₃H₇O

• C₂H₆O

• C₄H₁₀O

Which is the correct functional group in alkenes?

• C=C

• OH

• COOH

• Alkenes don't have a functional group

Which is the correct functional group in alcohols?

• C=C

• OH

• COOH

• They don't have a functional group

Which is the correct functional group in carboxylic acids?

• C=C

• OH

• COOH

• They don't have a functional group

Which is the correct functional group in alkanes?

• C=C

• OH

• COOH

• Alkanes don't have a functional group

Select all of these following that are methods to make ethanol.

• Dehydration of ethene

• Addition of water to ethene

• Fermentation of sugars with yeast

• Distillation of sugars

When ethanol is oxidised with potassium dichromate, the colour changes from

• orange to green

• green to orange

• red to blue

• orange to colourless

When ethanol is oxidised with potassium dichromate, K₂Cr₂O₇, the organic product is

• ethanol

• ethene

• ethanoic acid

• ethanal

Potassium dichromate K₂Cr₂O₇ is

• a reducing agent

• an oxidising agent

• an addition reagent

• an elimination reagent