MCQ
A hole is :
- AA positively charged electron.
- BAn electron in the valence band.
- ✓An unfilled covalent bond.
- DAn excess electron in covalent bond.
✓
Answer
Correct option: C.
An unfilled covalent bond.
When the covalent bond breaks, electrons are freed from atom. The departure of electron from valence band creates vacancy in bond, this vacancy is known as hole. Hence, a hole is an unfilled covalent bond.
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