Worksheetsacid and bases
Total questions: 20
Worksheet time: 10mins
Name
Class
Date
1.
Of the following substances, which is the strongest acid?
a)
Rain water
b)
Vinegar
c)
Coke
d)
Stomach acid (HCl)
2.
Caustic soda is the common name for
a)
Sodium Carbonate
b)
Calcium Hydroxide
c)
Sodium Hydroxide
d)
Sodium Chloride
3.
Which one of the following solutions will turn red litmus blue?
a)
H₂SO₄
b)
HCl
c)
NaOH
d)
NaCl
4.
The word acid comes from a Latin word meaning
a)
bitter
b)
sweet
c)
dilute
d)
sour
5.
Which ONE of the following is NOT a property of an acid?
a)
It has a sour taste
b)
Its pH is greater than 7
c)
It turns litmus red
d)
It reacts with metals to produce hydrogen gas
6.
Name the process taking place in the diagram where an acid reacts with a base.
a)
Concentration
b)
Distillation
c)
Evaporation
d)
Titration
7.
Which one of the following is the correct formula for sulfuric acid?
a)
SO₂
b)
HCl
c)
NaOH
d)
H₂SO₄
8.
Which one of the following is the correct chemical formula for hydrochloric acid?
a)
HCl
b)
NO₃
c)
NaCl
d)
H₂SO₄
9.
Which one of the following formulae represents a salt?
a)
HCl
b)
KCl
c)
HNO₃
d)
H₂O
10.
Which one of the following household substances is a base?
a)
Vinegar
b)
Washing soda
c)
Tomato ketchup
d)
Table salt
11.
How does sugary food cause tooth decay?
a)
Sugar reacts with acid in the mouth.
b)
Sugar gets stuck between your teeth and gums.
c)
Bacteria use the sugar for respiration and produces acid that reacts with the teeth.
d)
Sugar is converted into plaque which causes tooth decay.
12.
Chlorine is added to swimming pools to kill harmful microorganisms. However, this can cause the water to become too acidic. What type of substance is added to the water to neutralise the acid?
a)
A base
b)
CFCs
c)
Fluorine
d)
Chlorine
13.
What are the two products when an acid and base react together?
a)
Alkali and carbon dioxide
b)
Carbon dioxide and water
c)
Salt and water
d)
Carbon dioxide and salt
14.
Which one of the following equations is correct for the reaction between hydrochloric acid (HCl) and sodium hydroxide (NaOH)?
a)
HCl + NaOH ➞ H₂O + NaOCl
b)
HCl + NaOH ➞ HCl + H₂O
c)
HCl + NaOH ➞ NaCl + H₂O
d)
HCl + NaOH ➞ NaH + HOCl
15.
In the atmosphere, pure water combines with carbon dioxide to form an acid associated with acid rain. What is the name of this acid?
a)
Sulfuric acid
b)
Citric acid
c)
Carbonic acid
d)
Ethanoic acid
16.
All alkalis
a)
react with a carbonate to form carbon dioxide.
b)
have a pH value less than 7.
c)
act as indicators.
d)
are soluble in water.
17.
Which of the following pHs would you expect a concentrated solution of sodium hydroxide to have?
a)
1
b)
7
c)
14
d)
3
18.
What type of taste will bases generally have?
a)
Sour
b)
Sweet
c)
Bitter
d)
Salty
19.
Which one of the following is not a property of the pH scale?
a)
Bases have a high pH
b)
A pH of 7 is neutral
c)
Acids have a low pH
d)
It ranges from 1 to 12
20.
If suffering from an upset stomach, you may use a remedy such as Andrews, Gaviscon, Rennie, Alka-Seltzer etc. These are all examples of
a)
acids
b)
pain-killers
c)
salts
d)
bases
100 %
