(a)[4]
A, B, C and D are all distinct substances. Give the names of A, B, C and D.
(b)[2]
State the name of E and draw its structure.
(c)[1]
Butanoic acid is a weak acid. State what the term weak means in weak acid.
Chemistry 5070 · O Level · The characteristic properties of acids and bases
The characteristic properties of acids and bases — practice question
The diagram depicts several reactions of butanoic acid. It shows a central butanoic acid structure, reaction with magnesium giving gas A and salt B, reaction with magnesium carbonate giving salt B, gas C and liquid D, and heating with ethanol giving liquid D and organic liquid E.