Oxidation Numbers in Ethene

The video tutorial explains how to determine the oxidation numbers of atoms in the ethene (C2H4) molecule. It starts by discussing the concept of oxidation numbers in neutral molecules, then focuses on the oxidation number of hydrogen when bonded to non-metals, specifically in C2H4. The tutorial continues by explaining how to balance the oxidation numbers to maintain a neutral molecule, highlighting that hydrogen has a +1 oxidation number and carbon has a -2 oxidation number in C2H4. The video concludes with a summary of these findings.

What is the overall charge of the ethene (C2H4) molecule?

• Positive

• Negative

• Neutral

• Depends on the environment

When hydrogen is bonded to a non-metal, what is its typical oxidation number?

• +1

• 0

• -1

• +2

How many hydrogen atoms are present in the C2H4 molecule?

• 2

• 5

• 3

• 4

What is the total oxidation number contributed by all hydrogen atoms in C2H4?

• +2

• +5

• +3

• +4

What oxidation number must each carbon atom have to balance the charge of C2H4?

• -4

• -1

• -2

• -3

What is the oxidation number of each carbon atom in C2H4?

• +2

• 0

• -2

• -1

What is the purpose of calculating oxidation numbers in a molecule like C2H4?

• To calculate the density

• To determine the molecular weight

• To understand the charge distribution

• To find the boiling point