O Level
O-Level Pure Chemistry: Acids, Bases & Salts: Common Pitfalls
•By Intuitional Team•1 min read
O-Level Pure Chemistry — Acids, Bases & Salts: Common Pitfalls: quick notes, common traps, and an exam-style example.
Acids and bases
Acid reacts with base → salt + water. Strong vs weak acids: complete vs partial ionisation.
Salts
Made by neutralisation (acid + base/alkali/carbonate). Solubility rules help predict ppt formation.
Exam habits
- Write word and balanced chemical equations.
- State observations (effervescence, colour change).
- Memorise key solubility rules: all nitrates soluble, most chlorides soluble (except Ag, Pb).
Tags
O-LevelPure ChemistryAcidsBases & Salts