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Worksheets3NT Food Chemistry - Acids & Bases
Total questions: 12
Worksheet time: 7mins
Name
Class
Date
1.
Acid has a ______ taste.
a)
sour
b)
bitter
c)
soapy
d)
neutral
2.
Name the acid found in vinegar.
a)
citric acid
b)
ethanoic acid
c)
tannic acid
d)
hydrochloric acid
3.
Acids turn _____ litmus paper ______.
a)
blue; blue
b)
red; red
c)
blue; red
d)
red; blue
4.
The pH scale ranges from number _____ to _____.
a)
0; 6
b)
8; 14
c)
1; 14
d)
0; 14
5.
Neutral solutions have the pH value of ______.
a)
8
b)
7
c)
6
d)
14
6.
In _____ solutions, both the red and blue litmus will not change colour.
a)
alkaline
b)
acidic
c)
neutral
d)
dissolved
7.
A _______ is an instrument used to measure the pH of a substance accurately.
a)
universal indicator
b)
litmus paper
c)
pH meter
d)
natural indicators
8.
Acids + base ===> salt + ______
a)
water
b)
hydrogen gas
c)
carbon dioxide gas
d)
helium gas
9.
To test for hydrogen gas, a _____ sound must be heard.
a)
kebaboom
b)
zoom
c)
pom
d)
pop
10.
Acids + metal ===> salt + ________
a)
carbon dioxide gas
b)
hydrogen gas
c)
helium gas
d)
water
11.
The process of acids reacting with a base is called _________.
a)
mixing
b)
neutralisation
c)
dissolving
d)
chemical reaction
12.
Acids + carbonate ====> salt + ________ + water
a)
helium gas
b)
carbon monoxide gas
c)
hydrogen gas
d)
carbon dioxide gas
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