Oxidation

The transcript explains the concept of oxidation as the loss of electrons and highlights that for one substance to be oxidized, another must be reduced. It uses the reaction between lead oxide and carbon as an example, where carbon is oxidized and lead oxide is reduced.

What is a general definition of oxidation?

• Losing protons

• Gaining protons

• Losing electrons

• Gaining electrons

In a redox reaction, what must happen for one substance to be oxidized?

• Another substance must be reduced

• It must lose protons

• It must gain electrons

• Another substance must be oxidized

Which of the following is true about oxidation and reduction?

• They can occur independently

• They always occur together

• Only oxidation occurs in redox reactions

• Only reduction occurs in redox reactions

In the reaction between lead oxide and carbon, what happens to the carbon?

• It is reduced

• It is oxidized

• It remains unchanged

• It forms carbon dioxide

What is the result of the reduction of lead oxide in its reaction with carbon?

• Formation of lead

• Formation of oxygen

• Formation of carbon dioxide

• Formation of carbon