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WorksheetsLeaving Certificate Chemistry: Acid-Base: Theory
Total questions: 100
Worksheet time: 52mins
Is H2SO4 an acid or a base?
Acid
Base
Is HCl an acid or a base?
Acid
Base
Is HNO3 an acid or a base?
Acid
Base
Is H3PO4 an acid or a base?
Acid
Base
Is CH3COOH an acid or a base?
Acid
Base
Is NH3 an acid or a base?
Acid
Base
Is NaOH an acid or a base?
Acid
Base
Is KOH an acid or a base?
Acid
Base
Is NaOMe (also known as CH3ONa) an acid or a base?
Acid
Base
Is NaOMe Ca(OH)2 an acid or a base?
Acid
Base
Is Mg(OH)2 an acid or a base?
Acid
Base
Is Ba(OH)2 an acid or a base?
Acid
Base
Is Mg(OH)2 an acid, base or salt?
Acid
Base
Salt
Is Ca(OH)2 an acid, base or salt?
Acid
Base
Salt
Is CH3COONa an acid, base or salt?
Acid
Base
Salt
Is NaCl an acid, base or salt?
Acid
Base
Salt
Is KCl an acid, base or salt?
Acid
Base
Salt
Is MgCl2 an acid, base or salt?
Acid
Base
Salt
Is KBr an acid, base or salt?
Acid
Base
Salt
Is CaCl2 an acid, base or salt?
Acid
Base
Salt
Acids turn litmus from...
Blue to red
Red to blue
Bases turn litmus from...
Blue to red
Red to blue
Methyl orange is an example of an acid-base indicator. What colour is this indicator in sodium hydroxide?
Yellow
Red
Phenolphthalein is an example of an acid-base indicator. What colour is this indicator in sodium hydroxide?
Yellow
Pink
Colourless
Red
Phenolphthalein is an example of an acid-base indicator. What colour is this indicator in hydrochloric acid?
Yellow
Pink
Colourless
Red
Methyl orange is an example of an acid-base indicator. What colour is this indicator in hydrochloric acid?
Yellow
Pink
Colourless
Red
What is the common name for Ca(OH)2?
(a)
Name the piece of apparatus shown in the diagram.
(a)
Name the piece of apparatus shown in the diagram.
(a)
An acid and a base react together to give...
Salt and Water
Salt and Hydrogen
Salt, Water and Carbon Dioxide
Salt
A metal and an acid react together to give...
Salt and Water
Salt and Hydrogen
Salt, Water and Carbon Dioxide
Salt
A metal oxide and an acid react together to give...
Salt and Water
Salt and Hydrogen
Salt, Water and Carbon Dioxide
Salt
A metal carbonate and an acid react together to give...
Salt and Water
Salt and Hydrogen
Salt, Water and Carbon Dioxide
Salt
Name the 'type' of salt produced when nitric acid reacts with a base.
Chloride
Nitrate
Sulfate
Chlorate
Nitride
Name the 'type' of salt produced when sulfuric acid reacts with a base.
Chloride
Nitrate
Sulfate
Chlorate
Sulfide
Name the 'type' of salt produced when hydrochloric acid reacts with a base.
Chloride
Nitrate
Sulfate
Chlorate
Sulfide
Name the 'type' of salt produced when hydrochloric acid reacts with a base.
Note: one word answer required
(a)
Name the 'type' of salt produced when sulfuric acid reacts with a base.
Note: one word answer required
(a)
Name the 'type' of salt produced when nitric acid reacts with a base.
Note: one word answer required
(a)
When sodium hydroxide reacts with hydrochloric acid, sodium chloride is produced. What else is produced?
(a)
When sodium hydroxide reacts with nitric acid, sodium nitrate is produced. What else is produced?
(a)
When potassium hydroxide reacts with sulfuric acid, water is produced along with a salt. What is the name of the salt?
(a)
An acid has a pH above 7 or below 7?
Above 7
Below 7
A base has a pH above 7 or below 7?
Above 7
Below 7
Drain cleaner has a pH above 7 or below 7?
Above 7
Below 7
Lemon juice has a pH above 7 or below 7?
Above 7
Below 7
Coca cola has a pH above 7 or below 7?
Above 7
Below 7
Sodium hydroxide has a pH above 7 or below 7?
Above 7
Below 7
Limewater has a pH above 7 or below 7?
Above 7
Below 7
Limewater turns milky in the presence of...
(a)
What is the test for carbon dioxide?
Turns limewater milky
Re-ignites a glowing splint
Gives a squeaky pop when a lit splint is added to a sample of the gas
Bleaches litmus paper
What is the test for oxygen?
Turns limewater milky
Re-ignites a glowing splint
Gives a squeaky pop when a lit splint is added to a sample of the gas
Bleaches litmus paper
What is the test for hydrogen?
Turns limewater milky
Re-ignites a glowing splint
Gives a squeaky pop when a lit splint is added to a sample of the gas
Bleaches litmus paper
What is the test for chlorine?
Turns limewater milky
Re-ignites a glowing splint
Gives a squeaky pop when a lit splint is added to a sample of the gas
Bleaches litmus paper
In a titration of an acid against a base, a certain volume of acid is added from the burette into the conical flask. Addition of the acid is ceased when a colour change is observed in the indicator.
At this stage, will the pH of the solution in the conical flask be above or below 7?
Above 7
Below 7
In a titration of an acid against a base, a certain volume of base is added from the burette into the conical flask. Addition of the base is ceased when a colour change is observed in the indicator.
At this stage, will the pH of the solution in the conical flask be above or below 7?
Above 7
Below 7
An acid reacts with a base to form a salt and water. What name is given to this type of reaction?
(a)
A substance which changes colour depending on the pH of the solution with which it is combined. What is this substance?
(a)
A compound which shows, by means of a colour change whether a substance is acidic or basic. Name the substance.
(a)
The pH scale ranges from...
1-7
7-14
0-14
0-7
A solution whose pH is 7 is...
(a)
Name the compound produced when magnesium reacts with hydrochloric acid.
(a)
Name the compound produced when magnesium reacts with sulfuric acid.
(a)
Name the compound produced when magnesium reacts with nitric acid.
(a)
Name the compound produced when magnesium reacts with sulfuric acid.
(a)
Name the gas produced when magnesium reacts with nitric acid.
(a)
How would you test for the gas produced when magnesium reacts with hydochloric acid?
Turns limewater milky
Re-ignites a glowing splint
Gives a squeaky pop when a lit splint is added to a sample of the gas
Bleaches litmus paper
How would you test for the gas produced when magnesium carbonate reacts with hydochloric acid?
Turns limewater milky
Re-ignites a glowing splint
Gives a squeaky pop when a lit splint is added to a sample of the gas
Bleaches litmus paper
How many atoms are in hydrochloric acid?
(a)
How many atoms are in sulfuric acid?
(a)
How many atoms are in nitric acid?
(a)
Acid rain is produced from the reaction of sulfur dioxide, produced from the burning of fossil fuels (such as coal) and rainwater to form sulfurous acid. Sulfurous acid is subsequently converted to sulfuric acid upon reaction with oxygen in the air.
Acid rain is what causes 'white spots' on limestone buildings, as the 'acid' rain is reacting with the calcium carbonate in the limestone.
This reaction produces a gas which you can test for.
How would you test for this gas?
Turns limewater milky
Re-ignites a glowing splint
Gives a squeaky pop when a lit splint is added to a sample of the gas
Bleaches litmus paper
Universal indicator is a mixture of indicators. True or False?
True
False
Universal indicator changes colour at different pH values. True or False?
True
False
An alkali is a base which is soluble in water. True or False?
True
False
HCl is an example of an alkali. True or False?
True
False
NaOH is an example of an alkali. True or False?
True
False
The following is a description of an analytical technique:
''A measured volume of one solution is added to a known volume of another solution until the reaction is complete''.
This technique is called a...
(a)
I am placed underneath the conical flask when an acid, base and indicator are added to the conical flask. My purpose is to allow a chemist to see the colour change in the indicator more easily.
What am I?
(a)
According to the Arrhenius theory of acids and bases, an acid dissociates in water to produce...
H+ ions
OH- ions
According to the Arrhenius theory of acids and bases, a base dissociates in water to produce...
H+ ions
OH- ions
According to the Bronsted-Lowry theory of acids and bases, a base is a...
Proton donor
Proton acceptor
According to the Bronsted-Lowry theory of acids and bases, an acid is a...
Proton donor
Proton acceptor
According to the Bronsted-Lowry theory of acids and bases, HCl is a...
Proton donor
Proton acceptor
According to the Bronsted-Lowry theory of acids and bases, H2SO4 is a...
Proton donor
Proton acceptor
According to the Bronsted-Lowry theory of acids and bases, NaOH is a...
Proton donor
Proton acceptor
According to the Bronsted-Lowry theory of acids and bases, NH3 is a...
Proton donor
Proton acceptor
According to the Bronsted-Lowry theory of acids and bases, NH3 is a...
Proton donor
Proton acceptor
According to the Bronsted-Lowry theory of acids and bases, NH3 and NH4 are an example of a (a) acid-base pair.
What is the conjugate base in the reaction shown?
HCO3-
HCl
H2CO3
Cl-
An acid, such as HCl, becomes its conjugate base after it has __________ a proton.
Donated
Accepted
An acid, such as H2SO4, becomes its conjugate base after it has __________ a proton.
Donated
Accepted
A base, such as NH3, becomes its conjugate acid after it has __________ a proton.
Donated
Accepted
A base, such as OH-, becomes its conjugate acid after it has __________ a proton.
Donated
Accepted
(a) occurs when an acid and a base react together to form a salt and water.
A Swedish chemist who put forward one of the first definitions of acids. He received the Nobel prize for Chemistry in 1903 for his theory about the dissociation of certain substances in solution.
(a)
According to Arrhenius, ____________ is a substance that almost completely dissociates in water to produce H+ ions.
A Strong acid
A Strong base
A weak acid
A weak base
According to Arrhenius, ____________ is a substance that only slightly dissociates in water to produce H+ ions.
A Strong acid
A Strong base
A weak acid
A weak base
When H+ is added to water (e.g. HCl being added to a beaker of water), one of the lone pairs on the oxygen atom (of water) forms a covalent bond with the proton. Both electrons in this bond come from the same atom (the oxygen atom). Such a bond is called a (a) covalent bond.
