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WorksheetsSalt Preparation SABIS Grade 11
Total questions: 12
Worksheet time: 12mins
Which of the following reagents can be added to hydrochloric acid, HCl, to prepare zinc
chloride, ZnCl2?
Zn
ZnO
ZnCO3
ZnSO4
Which of the following reagents can be added to sulphuric acid, H2SO4, to prepare copper (II)
sulphate, CuSO4?
Cu
CuO
CuCO3
Cu(OH)2
Which of the following reactions produce ammonia gas?
acid + base
ammonium salt + base
acid + metal carbonate
acid + metal
acid + metal sulfide
Which of the following reactions produces a pungent smelling gas that turns damp red litmus
blue?
CaO + H2SO4
Ca(OH)2 + H2SO4
Ca + H2SO4
Ca(OH)2 + (NH4)2SO4
CaCO3 + H2SO4
Which of the following reactions produce (s) a gas?
acid + metal oxide
ammonium salt + base
acid + metal carbonate
acid + metal
acid + metal sulfite
The reaction of a strong acid with a strong base to produce salt and water is called:
(a)
During preparation of silver iodide, AgI, by precipitation, what is the correct order of the
steps?
mixing two aqueous solutions
drying residue in an oven
stirring with a glass rod
filtration
The pieces of apparatus needed during the preparation of sodium chloride, NaCl, by titration
are:
stop clock, burette, dropper
balance, burette, beaker
flask, burette, pipette
pipette, balance, burette
pipette, stop clock, balance
During the titration of an acid with a base, the color change that occurs when phenolphthalein
is used as an indicator is
red to yellow
pink to colorless
colorless to pink
yellow to red
During the titration of an acid with an base, the color change that occurs when methyl orange
is used as an indicator is
red to yellow
pink to colorless
colorless to pink
yellow to red
Dilute sulphuric acid is added to a mixture that contains magnesium, zinc and copper in a
beaker. The beaker is left for about 15 minutes and its contents are then filtered.
What does the filtrate contain?
Magnesium sulfate
Zinc Sulfate
zinc sulfate
Copper sulfate
Match the following reactions
Hydrochloric acid reacts with magnesium
to form hydrogen
Hydrochloric acid reacts with sodium carbonate
to form carbon dioxide
Hydrochloric acid reacts with copper (II) oxide
to form copper (II) chloride
