Oxidation Numbers and Nitrogen Compounds

This video tutorial explains how to determine the oxidation numbers for each element in nitrogen trichloride (NCl3). It begins by noting that NCl3 is a neutral compound, meaning the sum of its oxidation numbers is zero. The video details how chlorine, being in group 17, typically has an oxidation number of -1. With three chlorine atoms, the total is -3, requiring nitrogen to have an oxidation number of +3 to balance the compound. The tutorial concludes by verifying the calculations and confirming the oxidation numbers for NCl3.

What is the overall charge of the compound nitrogen trichloride (NCl3)?

• Positive

• Negative

• Neutral

• Variable

Why can't we determine the oxidation number of nitrogen just by looking at it?

• Because nitrogen is a noble gas

• Because nitrogen is always neutral

• Because nitrogen's oxidation number depends on its bonding

• Because nitrogen is in group 17

What is the typical oxidation number of chlorine in compounds?

• +2

• -1

• 0

• +1

How many chlorine atoms are present in nitrogen trichloride (NCl3)?

• 1

• 2

• 3

• 4

What should be the oxidation number of nitrogen in NCl3 to balance the overall charge?

• -3

• 0

• +1

• +3

What is the sum of the oxidation numbers in a neutral compound like NCl3?

• +3

• 0

• -3

• +1