Electrical Engineering XYZ MCQs
Which of the following is the pentavalent material:
- Arsenic
- Boron
- Gallium
- Neon
Correct answer: 1. Arsenic
Explanation: The pentavalent materials are those that can form compounds in which they exhibit a +5 oxidation state. The oxidation state refers to the charge that an atom would have if all bonds were purely ionic. Arsenic is a metalloid and can indeed exhibit a pentavalent state (+5 oxidation state) in certain compounds, such as arsenic pentoxide (As2O5).