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WorksheetsAcids, Bases and Salts
Total questions: 82
Worksheet time: 2hrs 53mins
Name
Class
Date
1.
The following properties are describing ______:
* pH range of 0-6.9
*turn litmus red
*contains more H+ than OH-
* pH range of 0-6.9
*turn litmus red
*contains more H+ than OH-
a)
acids
b)
bases
c)
salts
d)
neutralization
2.
A way to measure the concentration of hydrogen ions in a solution is to use a(n) _____.
a)
indicator
b)
litmus
c)
pH scale
d)
acid
3.
Ions that form when an acid interacts with water (H3O+).
a)
strong acid
b)
weak acid
c)
neutral solution
d)
Hydronium ions
4.
Ions that form when an acid interacts with water (H3O+).
a)
strong acid
b)
weak acid
c)
neutral solution
d)
Hydronium ions
5.
This image represents
a)
Neutralization reaction
b)
synthesis
c)
decompostion
d)
single displacement
6.
The following properties describe a(n) ____:
* feel slippery
*have a pH 7.1-14
*turn litmus blue
* feel slippery
*have a pH 7.1-14
*turn litmus blue
a)
acid
b)
base
c)
salt
d)
neutral ion
7.
A ___ ionizes almost completely in solution.
a)
weak acid
b)
strong acid
c)
weak base
d)
strong base
8.
____ indicates the amount of acid or base that is dissolved in solution.
a)
Concentration
b)
Dilution
c)
Ionization
d)
Neutralization
9.
A solution with a pH of 7 is considered a(n) _____.
a)
Acid
b)
Base
c)
neutral solution
d)
salt
10.
An organic substance that changes color in the presence of an acid or base
a)
indicator
b)
inhibitor
c)
catalyst
d)
salt
11.
what happens when a solution of an acid is mixed with a solution of a base in a test tube?a
a)
temperature of the solution increases
b)
temperature of the solution decreases
c)
temperature remains constant
d)
no reaction
12.
an aqueous soln turns red lithmus blue . excess addition of which of the following would reverse the change
a)
baking powder
b)
lime
c)
ammonium hydroxide solution
d)
HCL
13.
during preparation of HCL gas on a humid day the gas is usually passed through the guardtube containing calcium chloride .The role of calcium chloride is
a)
absorb the evolved gas
b)
moisten the gas
c)
absorb moisture from the gas
d)
absorb CL ions from the evolved gas
14.
calcium phosphate is present in tooth enamel its nature is
a)
basic
b)
acidic
c)
neutral
d)
amphoteric
15.
a sample of soil is mixed with water and allow to settle . The soln turns yellowish orange which of the foll soln will turn the colour to greenish blue
a)
lemon juice
b)
vinegar
c)
common salt
d)
antacid
16.
If a few drops of concentrated acid accidentally spills over the hand of a student,what should be done
a)
wash the hand with saline solution
b)
wash the hand immediately with plenty of water and apply a soln of sodium hydrogen carbonate
c)
after washing apply soln of sodium hydroxide
d)
neutralise the acid wih a strong alkali
17.
sodium hydrogen carbonate when added to acetic acid evolves a gas .which of the statement is true about the gas evolved
a)
it turns lime water milky
b)
it burns with a pop sound
c)
it changes the soln colorless
d)
it has a pungent smell
18.
common salt besides being used in kitchen can also be used as the raw material for making
a)
washing soda
b)
calcium salts
c)
plaster of paris
d)
slaked lime
19.
To protect tooth decay we are advised to brush our teeth regurlarly.The toothpaste is
a)
acidic
b)
neutral
c)
basic
d)
corrosive
20.
which of the foll phenomena occur when a small amunt of acid is added to water
a)
ionisation
b)
neutralisation
c)
dilution
d)
formation
21.
which one of the foll can be used as acid-base indicator by visually impared student
a)
litmus
b)
turmeric
c)
vanilla essence
d)
petunia leaves
22.
which of the foll substances will not give carbon dioxide on treatment with dilute acid
a)
marble
b)
limestone
c)
baking soda
d)
lime
23.
which of the foll is acidic in nature
a)
limewater
b)
humanblood
c)
lime juice
d)
antacid
24.
which of the foll is not mineral acid
a)
HCL
b)
H2SO4
c)
HNO3
d)
citric acid
25.
which of the foll is not a base
a)
NAOH
b)
KOH
c)
NH4OH
d)
C2H5OH
26.
Which of the foll statement is not correct and CO2
a)
all metal carbonates react with acid to give a salt,water and CO2
b)
all metal oxides react with water to give salt and acid
c)
some metals react with acids to give salt and H2
d)
some non metal oxides react with water to form an acid
27.
In a titration, the __________ is the point at which the indicator changes color and stays that way.
a)
standard point
b)
pH point
c)
acid point
d)
end point
28.
Which part of the soap molecule interacts with oil and dirt so they can be removed?
a)
ionic head
b)
non polar end
c)
polar end
d)
carboxylic group
29.
How are detergents advantageous over soaps?
a)
They can be used in hard water
b)
They precipitate out in hard water
c)
detergents are organic salts
d)
detergents have phosphates
30.
The concentration of the _____________ solution is known in a titration.
a)
hydrate
b)
normal
c)
standard
d)
indicator
31.
If a solution is neither acidic or basic it has a pH of _____________.
a)
1
b)
13
c)
6
d)
7
32.
HCl +H2O ------> H3O+ + Cl- is an example of _____________________.
a)
ionization of an acid
b)
ionization of a base
c)
neutralization of a base
d)
neutralization of an acid
33.
Which of the formulas below represents hydronium ions?
a)
OH+
b)
OH-
c)
H3O+
d)
H3O-
34.
Esters help the food industry by providing ________________.
a)
polyesters
b)
odor and flavor additives
c)
soaps
d)
refrigerants
35.
A substance with the pH of 6 would be __________________.
a)
extremely acidic
b)
extremely basic
c)
somewhat basic
d)
somewhat acidic
36.
What does pH measure?
a)
how acidic a substance is
b)
how basic a substance is
c)
how acidic or basic substances are
d)
how many hydronium ions and acid produces
37.
Metal ions in hard water can react with soap to form ________________.
a)
detergents
b)
soap scum
c)
acid-base indicators
d)
salts
38.
A base has a ___________ taste.
a)
bland
b)
salty
c)
bitter
d)
sour
39.
__________ produces only a few ions in solution.
a)
acids
b)
HCl
c)
HNO3
d)
ammonia
40.
HNO3 is an ____________.
a)
base
b)
acid
c)
acid or base
d)
an ester
41.
a)
A
b)
B
c)
C
d)
D
42.
a)
A
b)
B
c)
C
d)
D
43.
a)
A
b)
B
c)
C
d)
D
44.
a)
A
b)
B
c)
C
d)
D
45.
a)
A
b)
B
c)
C
d)
D
46.
What does pH measure?
a)
how acidic a substance is
b)
how basic a substance is
c)
how acidic or basic substances are
d)
how many hydronium ions and acid produces
47.
A base has a _________________.
a)
sour taste
b)
positive ion
c)
slippery feel
d)
pH of 5
48.
____________ can be corrosive.
a)
acids
b)
bases
c)
acids and bases
d)
neutral substances
49.
During titration indicators can be used to produce a change in color to _____________.
a)
acids
b)
bases
c)
acids or bases
d)
detergents
50.
Ca(OH)2 is caustic lime and is a(n) _________.
a)
acid or base
b)
buffer
c)
acid
d)
base
51.
Ionic bonds form between metals and ____.
a)
metalloids
b)
metals
c)
nonmetals
52.
In sodium chloride, sodium gives an electron to chlorine.
a)
True
b)
False
53.
If you combine an acid and a base, this occurs.
a)
acidification
b)
basification
c)
neutralization
d)
negativation
54.
Which of the following salt is not soluble in water?
a)
NaNO3
b)
CaCl2
c)
Na2SO4
d)
CaCO3
55.
Which is the stronger acid?
a)
pH 1
b)
pH 4
c)
pH 8
d)
pH 13
56.
Which of these salts decreases in solubility as the temperature increases.
a)
Ce2(SO4)3
b)
KClO3
c)
K2Cr2O7
d)
KNO3
57.
What salt is produced if you react sodium hydroxide with hydrochloric acid?
a)
sodium hydroxide
b)
sodium sulfate
c)
sodium nitrate
d)
sodium chloride
58.
A salt is formed when nitric acid combines with sodium hydroxide. What is the name of the salt?
a)
Sodium chloride
b)
Sodium nitrate
c)
Hydrogen Nitrate
d)
Nirate
59.
What kind of reaction is shown in the picture
a)
Endothermic
b)
Exothermic
c)
Explosive
d)
Boring
60.
Why must chemical equations be balanced?
a)
So that the equation doesn't explode
b)
The reaction won't happen until it is balanced
c)
Matter cannot be created or destroyed
d)
None of these
61.
Name the salt produced when reacting potassium hydroxide and phosphoric acid?
a)
Potassium chloride
b)
potassium nitrate
c)
potassium sulfate
d)
potassium phosphate
62.
Which of the following is a salt: ammonia or sodium chloride?
a)
ammonia
b)
sodium chloride
63.
The difference between a strong and weak acid is:
a)
Strong acids stay intact in water weak acids don't
b)
Strong acids are slippery weak acids aren't
c)
Strong acids break apart in water. Weak acids stay intact
d)
Weak acids break apart in water most of the time, strong acids do all of the time.
64.
Acid + Alkali�� �====>�� �________________What products are always formed from this reaction?
a)
a) Salt
b)
b) Salt + Water
c)
c) Salt + Hydrogen
d)
d) Salt + water + Carbon Dioxide
65.
Acid + Base�� �====>�� �________________What products are always formed from this reaction?
a)
a) Salt
b)
b) Salt + Water
c)
d) Salt + water + Carbon Dioxide
66.
3. Acid + Metal Carbonate�� �====>�� �________________What products are always formed from this reaction?
a)
a) Salt
b)
b) Salt + Water
c)
c) Salt + Hydrogen
d)
d) Salt + water + Carbon Dioxide
67.
4. Acid + Metal�� �====>�� �________________What products are always formed from this reaction?
a)
a) Salt
b)
b) Salt + Water
c)
c) Salt + Hydrogen
d)
d) Salt + water + Carbon Dioxide
68.
5.What is the name of the SALT formed from this reaction.Hydrochloric acid + Lithium Hydroxide�� �====>�� �________________
a)
a) Lithium Chlorine + water
b)
b) Lithium Chloric + water
c)
c) Lithium Chloride + water
d)
d) Lithium Chlorate + water
69.
6. What is the name of the SALT formed from this reaction.Citric Acid + Iron Oxide====>�________________
a)
a) Iron Citrate + water
b)
b) Iron Citride + water
c)
c) Iron Citric + water
d)
d) Oxygen Citrate + water
70.
7. What is the name of the SALT formed from this reaction.Sulphuric Acid + Magnesium Carbonate====>�� �________________
a)
a) Magnesium Chloride + water + carbon dioxide
b)
b) Magnesium Sulphide + water + carbon dioxide
c)
c) Magnesium Sulphate + water + carbon dioxide
d)
d) Magnesium Sulphate + water
71.
8. What is the name of the SALT formed from this reaction. Nitric Acid + Calcium�� �====>�� �________________
a)
a) Calcium Nitrogen + Hydrogen
b)
b) Calcium Nitric + Hydrogen
c)
c) Calcium Nitride + Hydrogen
d)
d) Calcium Nitrate + Hydrogen
72.
9. What are ALL the products formed from this reaction. Potassium + Nitric Acid��� ====>�� �________________
a)
a) Magnesium Nitrate + Water
b)
b) Potassium Nitride + Hydrogen
c)
c) Potassium Nitrate + Hydrogen
d)
d) Calcium Nitrate + Hydrogen
73.
10. What are ALL the products formed from this reaction. Citric Acid + Copper Oxide�� ====>�� �________________
a)
a) Copper + hydrogen
b)
b) Copper + Citric
c)
c) Copper + water
d)
d) Copper Citrate + water
74.
12. What are ALL the products formed from this reaction. Ethanoic acid + Sodium Hydroxide�� �====>�� �________________
a)
a) Lithium Ethanoate + water
b)
b) Sodium Ethanoate + hydrogen
c)
c) Sodium Ethanoate + water
d)
d) Sodium Chloride + water
75.
13. What substance is commonly referred to as an 'Alkali'?
a)
a) Metal Carbonate
b)
b) Metal Hydroxide
c)
c) Metal Oxide
d)
d) Metal
76.
14. What substance is commonly referred to as a 'Base'?
a)
a) Metal Carbonate
b)
b) Metal Hydroxide
c)
c) Metal Oxide
d)
d) Metal
77.
15. If Sodium is reacted with Sulphuric acid then what is the name of the salt formed?
a)
a) Sodium Sulphuric
b)
b) Sodium Chloride
c)
c) Sodium Nitrate
d)
d) Sodium Sulphate
78.
16. If Lithium is reacted with Nitric acid then what is the name of the salt formed?
a)
a) Lithium Nitrate
b)
b) Sodium Chloride
c)
c) Sodium Nitrate
d)
d) Lithium Nitric
79.
17. If Calcium is reacted with Citric acid then what is the name of the salt formed?
a)
a) Calcium Nitrate
b)
b) Calcium Chloride
c)
c) Calcium Citrate
d)
d) Sodium Chloride
80.
18. If Magnesium is reacted with Hydrochloric acid then what is the name of the salt formed?
a)
a) Sodium Chloride
b)
b) Magnesium Chloric acid
c)
c) Magnesium Chlorate
d)
d) Magnesium Chloride
81.
5. Which salt is insoluble?
a)
a) Sodium Carbonate
b)
b) Ammonium Carbonate
c)
c) Iron Hydroxide
d)
d) Ammonium Phosphate
82.
1. Which 'salts' are always soluble?
a)
a) Group 1
b)
b) Group 2
c)
c) Group 4
d)
d) Group 7
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