Font size
WorksheetsOxides and Salts
Total questions: 28
Worksheet time: 21mins
Which of the following salts is prepared by precipitation method?
sodium chloride
barium sulfate
calcium nitrate
ammonium carbonate
How would you prepare a sample of potassium chloride safely in the laboratory?
Add excess potassium metal to dilute hydrochloric acid
Titrate dilute HCl with aqueous KOH with an indicator
Titrate dilute HCl with aqueous KOH once with indicator, then again without
Mix aqueous potassium nitrate with aqueous sodium chloride
After adding aqueous Ca(NO3)2 to dilute H2SO4, what is my next step to prepare a sample of CaSO4?
Crystallisation
Evaporation to dryness
Filtration to get the filtrate
Filtration to get the residue
Why is solid calcium hydroxide added in excess to dilute nitric acid when preparing calcium nitrate salt?
To ensure all calcium hydroxide is used up
To speed up the reaction
To ensure all dilute nitric acid is used up
To have maximum yield of calcium nitrate
Which method of preparation of a pure salt solution requires the use of a pipette and burette?
BaCl2 + Na2SO4 --> BaSO4 + 2NaCl
CuO + HCl --> CuCl2 + H2O
NaOH + HCl --> NaCl + H2O
MgCO3 + H2SO4 --> MgSO4 + H2O + CO2
Which pair of reagents can be used to prepare copper(II) sulfate salt?
Copper metal with dilute sulfuric acid
Copper(II) nitrate with sodium sulfate
Copper(II) chloride and dilute sulfuric acid
Copper(II) carbonate with dilute sulfuric acid
Which two solutions, when mixed together, will form a precipitate?
dilute hydrochloric acid and barium nitrate
dilute sulfuric acid and sodium hydroxide
dilute hydrochloric acid and lead (II) nitrate
dilute nitric acid and zinc chloride
Which method is used to prepare silver chloride?
Add excess solid reactant to acid
Titration
Precipitation
Which method is used to prepare lead (II) chloride?
Pb(NO3)2(aq) + NaCl (aq) --->
PbSO4(s)+ NaCl (aq) --->
PbCO3(s) + NaCl (aq) --->
Precipitation involves mixing ___________ to form an insoluble solid that separates out from the reaction mixture.
acid and alkali
acid and metal
two acids
two solutions
Which is the most suitable method for separating the products of the reaction below:
NaCl (aq) + AgNO3 (aq) --> AgCl (s) + NaNO3 (aq)
chromatography
crystallisation
distillation
filtration
In order to obtain a soluble salt from a solution, which of the following methods should be used
filtration
crystallization
distillation
fractional distillation
How can I prepare a sample of copper(II) sulfate?
Add excess Cu metal to H2SO4
Add Cu(NO3)2 (aq) to Na2SO4(aq)
Add excess CuCO3 to H2SO4
Titrate Cu(OH)2 to NaOH
After adding FeO with HNO3, what is my next step to prepare Fe(NO3)2 crystals?
Filtration to get the residue
Filtration to get the filtrate
Evaporation to dryness
Crystallisation
Select the statements that are true of basic oxides.
They are oxides of metals.
They dissolve in water to form acids.
They react with acids to form salt and water.
They react with bases to form salts and water.
Which statement is false of acidic oxides?
They are oxides of non-metals.
They dissolve in water to form acids.
They do no react with acids or alkalis.
They react with alkalis to form salt and water.
Carbon monoxide, water and nitrogen monoxide are examples of (a) oxides.
Select the statements that are true of amphoteric oxides.
They are mostly insoluble in water.
They do not react with acids and alkalis.
They react with acids to form salt and water.
They react with akalis for form salt and water.
Which is the ionic equation of the reaction between hydrochloric acid and sodium hydroxide?
Na+ (aq) + Cl- (aq) --> NaCl (aq)
H+ (aq) + OH- (aq) --> H2O (l)
H- (aq) + OH+ (aq) --> H2O (l)
What type of oxide is:
Copper (II) Oxide
Amphoteric Oxide
Basic Oxide
Neutral Oxide
Acidic Oxide
What type of oxide is:
Carbon monoxide
Amphoteric Oxide
Basic Oxide
Neutral Oxide
Acidic Oxide
Amphoteric oxides are substances that
Reacts with acids only
Reacts with bases only
Reacts with acids and bases
Do not react with acids or bases
ZnO is an oxide that can react with acids and bases, as shown in the following equations:
ZnO + HSO --> ZnSO + H2O
ZnO +2NaOH -->Na2ZnO2 +H2O
What name is given to an oxide that reacts with both acids and bases?
neutral
acidic
precipitate
amphoteric
displacement
Which of the following oxides is most likely to be an acidic oxide?
CuO
Na2O
MgO
CO2
Which of the following oxides is most likely to be an basic oxide?
Al2O3
H2O
MgO
CO2
What type of oxide is:
Potassium oxide
Amphoteric Oxide
Basic Oxide
Neutral Oxide
Acidic Oxide
What type of oxide is:
Nitrogen Dioxide
Amphoteric Oxide
Basic Oxide
Neutral Oxide
Acidic Oxide
