Which one of the following is <strong>NOT</strong> a property of 'graphene'?
- A. It is the thinnest material known so far.
- B. It is almost completely transparent.
- C. It is highly conducting.
- D. It is a wide band-gap semiconductor. ✓
Correct Answer: D. It is a wide band-gap semiconductor.
Explanation
Graphene is a zero band-gap semiconductor (or a semimetal). Its lack of a band gap gives it its extraordinarily high electrical conductivity.
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