Oxidation Numbers in SF4

The video tutorial explains how to determine the oxidation numbers of elements in sulfur tetrafluoride (SF4). It begins by identifying the oxidation number of fluorine as -1 and uses the rule that the sum of oxidation numbers in a neutral compound must be zero. By applying this rule, the oxidation number of sulfur is calculated to be +4. The video concludes with a recap of the process used to find these oxidation numbers.

What is the central element in SF4?

• Fluorine

• Sulfur

• Nitrogen

• Oxygen

How many fluorine atoms are present in SF4?

• 2

• 3

• 4

• 5

What is the oxidation number of fluorine in SF4?

• -1

• 0

• +1

• +2

Why must the oxidation numbers in a neutral compound add up to zero?

• To ensure the compound is stable

• To balance the chemical equation

• Because there is no overall charge

• Because the compound is charged

What is the oxidation number of sulfur in SF4?

• -4

• +4

• +2

• 0

What is the total oxidation number of all fluorine atoms in SF4?

• -4

• +4

• 0

• -2

What is the purpose of finding oxidation numbers in a compound?

• To determine the molecular weight

• To identify the type of bond

• To understand electron transfer

• To calculate the melting point