QA (C) Preview Page

Learning Outcomes 

Students should be able to:


(a) describe the use of aqueous sodium hydroxide and aqueous ammonia to identify the following aqueous cations: ammonium, calcium, copper(II), iron(II), iron(III), lead(II) and zinc (formulae of complex ions are not required) 

(b) describe tests to identify the following anions: carbonate (by the addition of dilute acid and subsequent use of limewater), chloride (by reaction of an aqueous solution with nitric acid and aqueous silver nitrate), nitrate (by reduction with aluminium and aqueous sodium hydroxide to ammonia and subsequent use of litmus paper) and sulfate (by reaction of an aqueous solution with nitric acid and aqueous barium nitrate) 

(c) describe tests to identify the following gases: ammonia (using damp red litmus paper), carbon dioxide (using limewater), chlorine (using damp litmus paper), hydrogen (using a burning splint), oxygen (using a glowing splint) and sulfur dioxide (using acidified potassium manganate(VII)) 


Sample Worksheet 

QA sample worksheet