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WorksheetsAcids Bases (Level 1)
Total questions: 16
Worksheet time: 8mins
An acid is a substance that
contains hydrogen atoms in the molecules.
ionises in water to produce hydrogen ions as the only positive ions.
dissolves to produce hydrogen atoms in water.
forms hydroxide ions when dissolves in water.
Acids + Reactive Metals -->
Salt + Hydrogen gas
Salt + Water
Salt + Ammonia gas + Water
Salt + Carbon dioxide gas + Water
Acids + Metal carbonate -->
Salt + Hydrogen gas
Salt + Water
Salt + Ammonia gas + Water
Salt + Carbon dioxide gas + Water
Acids + Metal oxide -->
Salt + Hydrogen gas
Salt + Water
Salt + Ammonia gas + Water
Salt + Carbon dioxide gas + Water
A salt, ammonia gas and water are produced when
an acid reacts with an alkali.
an alkali reacts with a metal carbonate.
an acid reacts with an ammonium compound.
an alkali reacts with an ammonium compound.
A base is a metal oxide or a metal hydroxide.
An alkali is a substance that dissolves in water to produce hydroxide ions as the only negative ions.
Thus, all alkalis are ...
soluble bases or aqueous ammonia.
soluble bases, but not all bases are soluble.
insoluble bases, except for those containing Group 1 metal ions.
the same as bases.
Only salt and water are produced when
a metal oxide is dissolves in an acid.
an acid reacts with metal carbonate.
a metal hydroxide reacts with an acid.
an acid is added to aqueous ammonia.
A solution has a pH = 1.
What substance must be present in the solution?
sodium ions, Na+
hydrogen ions, H+
hydroxide ions, OH-
oxide ions, O2-
An insect sting is alkaline.
Which common substance could be used to neutralise the insect sting?
damp washing soda [pH = 10]
damp salt [pH = 7]
liquid floor cleaner [pH = 11]
vinegar [pH = 4]
Solid citric acid reacts with metals.
True
False
Litmus paper can measure the pH of a solution.
True
False
Salts are formed when the hydrogen ions in the acid are replaced by metal ions or ammonium ions.
True
False
Solid Y was added bit-by-bit, with stirring, to aqueous solution Z.
The changes in pH of the mixture are shown in the graph.
Y = soluble metal hydroxide ; X = dilute acid
Y = insoluble metal carbonate ; X = dilute acid
Y = soluble metal hydroxide ; X = aqueous alkali
Y = insoluble metal carbonate ; X = aqueous alkali
Name the salt formed when HCl and Zn reacts
zinc chloride
zinc chlorate
zinc hydrogen chloride
zinc chlorine
Which substances can react with dilute sulfuric acid to form copper(II) sulfate?
copper
copper(II) oxide
copper(II) nitrate
copper(II) hydroxide
copper(II) carbonate
Which substances can react with dilute sulfuric acid to form copper(II) sulfate?
copper
copper(II) oxide
copper(II) nitrate
copper(II) hydroxide
copper(II) carbonate
