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Question

The elements that have intermediate properties between those of metals and non-metals are called metalloids. Which among the following is known as a metalloid?

This question was previously asked in
RRB NTPC 2019 CBT 1 Question Paper PDF (31-Jan-2021) (Shift 1)
The correct answer is
Germanium

Understanding Metalloids and Identifying Germanium

Metalloids are chemical elements that have properties intermediate between those of metals and non-metals. They often exhibit characteristics like semiconductor behavior.

Option Analysis for Metalloids

  • Carbon (C): This element is classified as a non-metal.
  • Copper (Cu): Known for its excellent conductivity, Copper is a metal.
  • Germanium (Ge): This element displays a mix of metallic and non-metallic properties, fitting the definition of a metalloid.
  • Iodine (I): Iodine, a member of the halogen group, is categorized as a non-metal.

Therefore, Germanium is the element among the options known as a metalloid.

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