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When a glass rod is rubbed with silk, it

1. Gains electrons from silk
2. Gives electrons to silk
3. Gains protons from silk
4. Gives protons to silk

Correct answer: Gives electrons to silk

Solution

When a glass rod is rubbed with silk, electrons move from the glass to the silk. The glass rod loses electrons and becomes positively charged, while silk gains electrons and becomes negatively charged.

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