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WorksheetsY7 Acids & Alkalis
Total questions: 12
Worksheet time: 6mins
Name
Class
Date
1.
pH of an acid
a)
lower than 7
b)
Higher than 7
c)
7
2.
pH of an alkali
a)
Lower than 7
b)
higher than 7
c)
7
3.
pH of a neutral chemical
a)
Lower than 7
b)
Higher than 7
c)
7
4.
a)
Flammable
b)
Corrosive
c)
Toxic
d)
Irritant
5.
Acid + Alkali makes.....
a)
Salt and Water
b)
Water
c)
Acid
d)
Salt and Vin
6.
When an acid reacts with an alkali
a)
Combustion
b)
Dissolving
c)
Neutralisation
d)
Diffusion
7.
The formula for Hydrochloric Acid
a)
HCl
b)
H2O
c)
H2SO4
d)
NaOH
8.
The formula for Sodium hydroxide
a)
HCl
b)
H2O
c)
H2SO4
d)
NaOH
9.
a)
Flammable
b)
Toxic
c)
Corrosive
d)
Harmful
10.
How do indicators identify acids and alkalis?
a)
Fizzing
b)
Exploding
c)
Dissolving
d)
Changing colour
11.
Which are the acids?
a)
Vinegar
b)
Hydrochloride acid
c)
Sodium hydroxide
d)
Bleach
12.
Which are the alkalis ?
a)
Vinegar
b)
Hydrochloride acid
c)
Sodium hydroxide
d)
Bleach
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