Question

Which one of the following is a metalloid?

• A. Fe
• B. Cu
• C. Ni
• D. As

Hint:

Metalloids include elements like silicon, boron, and arsenic.

Answer 1

The Correct Option is D

Metalloids have properties of both metals and non-metals. Arsenic (\( As \)) is a metalloid, while iron (\( Fe \)), nickel (\( Ni \)), and copper (\( Cu \)) are metals.Thus, the correct answer is \( \mathbf{(D) As} \).