Chemistry Regents Exam Review HW 10 (Redox)

What does the acronym 'OILRIG' stand for in the context of redox reactions?

• Oxygen Involves Loss, Reduction Involves Gain

• Oxidation Is Loss, Reduction Is Gain

• Oxygen Is Lost, Reduction Is Gained

• Oxidation Involves Loss, Reduction Involves Gain

What is the role of electrons in redox reactions?

• They are ignored as they do not participate.

• They determine the state of matter of the compounds involved.

• They are transferred between atoms, determining oxidation and reduction.

• They only affect the physical properties of the substances.

In the Haber process, what is the oxidation state of nitrogen in ammonia (NH3)?

• +3

• -3

• +1

• 0

What is the oxidation state of oxygen in most compounds?

• -1

• +1

• 0

• -2

Which element is reduced in the reaction involving silver diamine and an aldehyde?

• Nitrogen

• Hydrogen

• Silver

• Carbon