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12 questions from this quiz
Electrical energy
Chemical reactions are irreversible
1.5V1.5\text{V}1.5V
Reversible chemical reactions
3.8V3.8\text{V}3.8V
2V2\text{V}2V
Secondary cells
Smoke alarm
Smartphone
Must be disposed of
12V12\text{V}12V
For frequently used devices
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