WorksheetsCIE IGCSE 8.3 Making soluble and insoluble salts
Total questions: 11
Worksheet time: 11mins
What does the word insoluble mean?
Does dissolve
Doesn't dissolve
Is part of a solid
What type of reaction produced an insoluble salt?
Neutralisation reaction
Precipitation reaction
Titration reaction
Insoluble reaction
When a soluble salt is formed from an acid and an insoluble base, how do you know when an excess of a base has been added?
When bubbles of gas appear
When the reactant all dissolves
When some of the reactant is left unreacted/undissolved
When a colour change happens
Why do you add excess of the insoluble reactant when making a soluble salt?
To make sure all the acid is used up
To separate the solid from the solution
To make sure a reaction occurs
To have the reaction happen faster
How do you separate an excess insoluble reactant from a solution?
Filtration
Precipitation
Crystalisation
Evaporation
When producing a soluble salt in a reaction between an acid and an alkali, how can you prepare dry solid crystals from the solution?
Filtration
Neutralisation
Condensation
Evaporation/crystallisation
What reactants could you start with if you wanted to make zinc chloride
zinc and hydrochloric acid
zinc oxide and hydrochloric acid
zinc oxide and sulfuric acid
zinc carbonate and sulfuric acid
What is the purpose of a titration when making pure salts?
To test if reactants react.
To determine the exact quantities needed for neutralisation
To calculate the concentration of the salt
To test quality of reactants.
Which is NOT a step when making insoluble salts?
mix
filter
rinse
crystallise
Which is NOT a step when making soluble salts from insoluble bases?
mix
filter
add indicator
crystallise
