Question : Which of the following are metalloids?
Option 1: Boron, Oxygen, Aluminium
Option 2: Boron, Mercury, Iron
Option 3: Boron, Silicon, Antimony
Option 4: Aluminium, Mercury, Copper
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Correct Answer: Boron, Silicon, Antimony
Solution : The correct options are Boron, Silicon, and Antimony.
Boron, Silicon, and Antimony are considered metalloids. Metalloids are elements that have properties intermediate between metals and nonmetals. Metalloids have intermediate electrical conductivity compared to metals and non-metals. They can conduct electricity, but not as effectively as metals.
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