Question 1

What is the oxidation number of nitrogen in ammonium ion (NH4+)?

Accepted Answer

-3

Answer

+3

Answer

0

Answer

+5

Question 2

What is the oxidation number of sulfur in sulfuric acid (H2SO4)?

Accepted Answer

6

Answer

2

Answer

0

Answer

4

Question 3

What is the oxidation number of carbon in carbon dioxide (CO2)?

Accepted Answer

+4

Answer

+2

Answer

-2

Answer

0

Question 4

What is the oxidation number of iron in iron(III) oxide (Fe2O3)?

Accepted Answer

+3

Answer

-3

Answer

+2

Answer

0

Question 5

What is the oxidation number of manganese in potassium permanganate (KMnO4)?

Accepted Answer

+7

Answer

0

Answer

+4

Answer

+2

Question 6

What is the oxidation number of nitrogen in nitric acid (HNO3)?

Accepted Answer

+5

Answer

-1

Answer

0

Answer

+3

Question 7

What is the oxidation number of copper in copper(II) sulfate (CuSO4)?

Accepted Answer

+2

Answer

+3

Answer

+1

Answer

0

Question 8

What is the shape of the carbon dioxide (CO2) molecule?

Accepted Answer

Linear

Answer

Bent

Answer

Tetrahedral

Answer

Trigonal planar

Question 9

What is the molecular shape of ammonia (NH3)?

Accepted Answer

Trigonal pyramidal

Answer

Linear

Answer

Bent

Answer

Tetrahedral

Question 10

What shape does the water (H2O) molecule have?

Accepted Answer

Bent

Answer

Trigonal planar

Answer

Tetrahedral

Answer

Linear

Question 11

What is the molecular shape of carbon tetrachloride (CCl4)?

Accepted Answer

Tetrahedral

Answer

Linear

Answer

Trigonal pyramidal

Answer

Octahedral

Question 12

What is the shape of the phosphate ion (PO4^3-)?

Accepted Answer

Tetrahedral

Answer

Square planar

Answer

Octahedral

Answer

Trigonal planar

Question 13

What is the molecular geometry of boron trifluoride (BF3)?

Accepted Answer

Trigonal planar

Answer

Bent

Answer

Tetrahedral

Answer

Linear

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