Which of the following is NOT an example of electrolysis?

Electrolysis requires passing electric current through a liquid to cause chemical changes. Sugar dissolving in water is a physical change that happens naturally without electricity.

When sugar dissolves, the sugar molecules spread out in water but remain chemically unchanged. No electric current is needed for this simple mixing process.

Electroplating, water decomposition, and aluminum extraction all use electricity to force chemical reactions. Only sugar dissolution occurs without electrical energy input.