Quiz about Predicting Oxidation Numbers

Question 1

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

Accepted Answer

0

Answer

-1

Answer

-2

Answer

+2

Question 2

Oxidation number of O in the compound H₂O:

Accepted Answer

-2

Answer

0

Answer

-1

Answer

+2

Question 3

Oxidation number of Fe in FeO:

Accepted Answer

+2

Answer

0

Answer

-2

Answer

+3

Question 4

Oxidation number of N in NH₄⁺:

Accepted Answer

-3

Answer

0

Answer

+2

Answer

+4

Question 5

What is oxidation number of P in K₃PO₄?

Accepted Answer

+5

Answer

+1

Answer

-2

Answer

0

Question 6

What is the oxidation state of vanadium in V(H₂O)₆³⁺

Accepted Answer

3+

Answer

1+

Answer

5+

Answer

7+

Question 7

What is the oxidation state of phosphorous in Mg₃(PO₄)₂

Accepted Answer

+5

Answer

+2

Answer

+3

Answer

+4

Question 8

What is the oxidation number of sulfur in $$SO_2$$ ?

Accepted Answer

+4

Answer

0

Answer

+2

Answer

+6

Question 9

In the compound $$H_2SO_4$$ , what is the oxidation number of sulfur?

Accepted Answer

+6

Answer

+2

Answer

+4

Answer

-2

Question 10

Determine the oxidation number of chlorine in $$ClO_3^-$$ .

Accepted Answer

+7

Answer

+1

Answer

+3

Answer

+5

Question 11

What is the oxidation number of carbon in $$CO_2$$ ?

Accepted Answer

+4

Answer

0

Answer

+2

Answer

-4

Question 12

In the compound $$KMnO_4$$ , what is the oxidation number of manganese?

Accepted Answer

+7

Answer

+2

Answer

+4

Answer

+6

Question 13

What is the oxidation number of nitrogen in $$NO_3^-$$ ?

Accepted Answer

+5

Answer

+1

Answer

+3

Answer

+7

Question 14

Determine the oxidation number of chromium in $$Cr_2O_7^{2-}$$ .

Accepted Answer

+6

Answer

+3

Answer

+7

Answer

+12

Question 15

What is the oxidation number of phosphorus in $$H_3PO_4$$ ?

Accepted Answer

+5

Answer

+3

Answer

+7

Answer

+1

Predicting Oxidation Numbers

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