Class 8 - Science
Chapter 13 - Chemical Effect of Electric Current
(Worksheet)
1. Static electricity was first observed by _________, a Greek scientist, more than 2500 years ago.
2. is the process in which an electric current is passed through a liquid, causing a chemical reaction to take place.
3. Most liquids that conduct electricity are solutions of _______, _______ and ______________.
4. When electricity is passed through tap water, the gases ________ and ______are evolved.