Question

When a glass rod is rubbed with silk, it ______. 

Options

• gains electrons from silk.

• gives electrons to silk.

• gains protons from silk.

• gives protons to silk.

Answer 1

When a glass rod is rubbed with silk, it gives electrons to silk.

Explanation:

On rubbing a glass rod with silk, excess electrons are transferred from glass to silk. So glass rod becomes positive and silk becomes negative.