Topic 6 - Alcohols (Paper 2)

Question 1

what is the general formula of an alchohol?

Answer 1

CₙH₂ₙ₊₁OH

Question 2

what functional group do alchols contain?

Answer 2

-OH

Question 3

what happens when something is oxidised?

Answer 3

it gains oxygen/looses electrons

Question 4

what happens when an alcohol is oxidised?

Answer 4

carboxylic acids are formed

Question 5

what happens when ethanol is heated with acidified potassium dicromate?

Answer 5

ethanoic acid is formed

Question 6

how can alchols be used as an energy source for microogranisms?

Answer 6

they use oxygen in the air to oxidise alcohols. carboxylic acids are made as a byproduct

Question 7

what happens when alcohol is burnt in enough oxygen?

Answer 7

they undergo complete combustion, forming water and carbon dioxide