Free Printable OXIDATION NUMBER

Free Printable Worksheets

Worksheets

OXIDATION NUMBER

Total questions: 10

Worksheet time: 20mins

Name

Class

Date

1.

Oxidation number of O in its stable elemental form, O₂:

a)

0

b)

-1

c)

-2

d)

+2

2.

Oxidation number of O in the compound H₂O₂:

a)

0

b)

-1

c)

-2

d)

+2

3.

Oxidation number of O in the ion H₃O⁺:

a)

0

b)

-1

c)

-2

d)

+2

4.

Oxidation number of Fe in FeO:

a)

0

b)

-2

c)

+2

d)

+3

5.

Oxidation number of Fe in Fe₂O₃:

a)

0

b)

-2

c)

+2

d)

+3

6.

Oxidation number of Fe in Fe²⁺ ion:

a)

0

b)

-2

c)

+2

d)

+3

7.

Oxidation number of S in H₂S:

a)

0

b)

-2

c)

+4

d)

+6

8.

Oxidation number of S in SO₂:

a)

0

b)

-2

c)

+4

d)

+6

9.

Oxidation number of S in SO₄^2-:

a)

0

b)

-2

c)

+4

d)

+6

10.

Oxidation number of H in NaH:

a)

0

b)

+1

c)

-1

d)

+2

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