In the Electrolysis of Aqueous Potassium Nitrate Using Inert Electrodes

question 19

Multiple Choice

In the electrolysis of aqueous potassium nitrate using inert electrodes, which one of the following species is oxidized?

• A) potassium ion
• B) nitrate ion
• C) water
• D) oxygen
• E) hydronium ion

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Definitions:

Concentration Gradient

The slow change in solute concentration within a solution from one area to another, often resulting in diffusion.

Atmospheric Pressure

The force per unit area exerted against a surface by the weight of the air above that surface in the atmosphere of Earth.

Lung Volume

The total amount of air that the lungs can hold, which varies among individuals and is crucial for respiratory function.

Smooth Muscle

A type of muscle found in the walls of hollow organs like the intestines and blood vessels, controlling involuntary movements.