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Worksheets

Naming Polyatomic Ions

Total questions: 22

Worksheet time: 11mins

Name
Class
Date
1.
What is the name of this polyatomic ion?  NO2-
a)
Nitride
b)
Nitrate
c)
Nitrite
d)
Ammonium
2.
Which of the following is chromate?
a)
CrO42-
b)
CrO32-
c)
CrO22-
d)
CrO2-
3.
Which of the following is nitrate?
a)
NO-
b)
NO2-
c)
NO3-
d)
NO4-
4.

What is the correct name for this polyatomic ion: CN–

a)

carbonate

b)

cyanide

c)

chromate

d)

chromite

5.

What is the correct name for this polyatomic ion: OH–

a)

hydrogen carbonate

b)

oxonium

c)

hydroxide

d)

acetate

6.

What is the correct name for this polyatomic ion: NO3–

a)

carbonate

b)

hydroxide

c)

nitrite

d)

nitrate

7.

What is the correct name for this polyatomic ion: PO43–

a)

phosphorus tetroxide

b)

phosphate

c)

sulphate

d)

hydroxide

8.

What is the correct formula for the polyatomic ion called chlorate?

a)

ClO–

b)

ClO2–

c)

ClO3–

d)

ClO4–

9.

What is the correct formula for the polyatomic ion called ammonium?

a)

NH3+

b)

NH3

c)

CN+

d)

NH4+

10.

The oxidation number of the ammonium ion is

a)

+1

b)

-1

c)

+2

d)

-2

11.

The oxidation number of the acetate ion is

a)

+1

b)

-1

c)

+2

d)

-2

12.

The oxidation number of the bicarbonate ion is

a)

+1

b)

-1

c)

+2

d)

-2

e)

+3

13.

What is the correct formula for the polyatomic ion called hydrogen carbonate, also called bicarbonate?

a)

HCO3–

b)

CO32–

c)

CrO42–

d)

CN–

14.

Acetate is

a)

C2H3O21-

b)

C3H2O31-

c)

C2H2O31-

d)

C3H3O21-

15.

MnO4- is

a)

permanganate

b)

chlorate

c)

hydroxide

d)

nitrate

16.

The oxidation number of the sulfate & sulfite ions is

a)

+1

b)

-1

c)

+2

d)

-2

e)

+3

17.

The oxidation number of the nitrate & nitrite ions is

a)

+1

b)

-1

c)

+2

d)

-2

e)

+3

18.

The oxidation number of the chloride, chlorate, chlorite, perchlorate, & hypochlorite ions is

a)

+1

b)

-1

c)

+2

d)

-2

e)

+3

19.

The oxidation number of the phosphate ion is

a)

+1

b)

-1

c)

+2

d)

-2

e)

-3

20.

The oxidation number of the hydroxide ion is

a)

+1

b)

-1

c)

+2

d)

-2

e)

-3

21.

What is the correct name for this polyatomic ion: ClO2

a)

hypochlorite

b)

chlorite

c)

chlorate

d)

perchlorate

22.

What is the correct formula for the polyatomic ion called sulfate?

a)

SO32–

b)

HSO4–

c)

SO42–

d)

CH3COO–