O-LevelChemistryAcids, Bases & Salts5070/11 · May/June 2018 · Q221 Mark
A solution of W has the following properties. • When added in excess to solid ammonium chloride, a gas is given off that turns damp red litmus paper blue. • When added in excess to a solution of pH 3, the resulting solution has a pH of 13. What is W?
Astrong acid
Bstrong base
Cweak acid
Dweak base
✓ Correct answer
B: strong base
Practise more questions on this topic
Oracle Prep sorts past-paper questions by topic, so you can drill Acids, Bases & Salts and see which topics are most likely to come up next.
Sign up free →