Chemistry 5070 · O Level · Identification of ions and gases
Identification of ions and gases — practice question
Select from the compounds below to answer the questions.
aluminium iodide
ethanol
glucose
lead(IV) chloride
lithium bromide
magnesium carbonate
methane
potassium phosphate
silver nitrate
sodium sulfate
sulfur dioxide
Each compound may be used once, more than once, or not at all.
Which compound:
(a)[1]
gives off ammonia when its aqueous solution is heated with aqueous sodium hydroxide and aluminium
(b)[1]
includes ions carrying a $1-$ charge that are found in many fertilisers
(c)[1]
contains ions carrying a $2+$ charge
(d)[1]
turns orange when it reacts with chlorine in aqueous solution
(e)[1]
is a hydrocarbon that comes from the bacterial decay of vegetable matter?
Worked solution & mark scheme
This 5-mark question has a full step-by-step worked solution and mark scheme. One marking point: “silver nitrate ($\text{AgNO}_3$)” …