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Grade 9 Acids, bases, and salts

Total questions: 13

Worksheet time: 21mins

Name
Class
Date
1.

when a substance dissolves in water, the solution may become......or.....or stay......

a)

salty, sour, sweet

b)

neutral, sour, alkaline

c)

acidic, alkali, acidic

d)

acidic, alkali, neutral

2.
Bases
a)
formed from joining positive and negative ions
b)
increase OH ions
c)
forms a salt and water
d)
increases H2O ions
3.

Which of the following values would represent the pH of a strong base?

a)

1

b)

8

c)

7

d)

13

4.
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
5.
which of the  foll is not mineral acid
a)
HCL
b)
H2SO4
c)
HNO3
d)
citric acid
6.
which of the foll is not a base
a)
NAOH
b)
KOH
c)
NH4OH
d)
C2H5OH
7.
Tastes bitter.
a)
Acids
b)
Bases
c)
Salts
d)
All
8.

Choose 2 suitable reactants that can be used to make sodium chloride.

a)

sodium nitrate

b)

sodium hydroxide

c)

magnesium chloride

d)

hydrochloric acid

9.

which of the following statement is correct?

a)

acids, bases, and salts dissoved in water are all conductor of electricity

b)

acids are conductors of electricity, bases are not, but salts dissovled in water are too

c)

only bases are conductos of electrisity

d)

only salts dissolved in water are condutors of electricity

10.

complete the equation below:

Zn + H2SO4 --> ............. +............

a)

ZnSO4+ H2

b)

CO2 + H2O

c)

ZnOH + CO2

11.

complete the equation below:

................ + Fe --> FeCl2 +.............

a)

HCl, H2

b)

H2SO4, H2

c)

Zn, H2O

d)

CO2, HNO3

12.

what is the name of the following chemical formula?

HNO3

a)

Hydrochloric acid

b)

Sodium hydroxide

c)

sulfuric acid

d)

nitric acid

13.

what is the name of the following chemical formula?

NaOH

a)

sulfuric acid

b)

potassium hydroxide

c)

nitric acid

d)

caustic soda