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WBCS Main Examination 2023 — Paper IV: General Studies II · Question 33 of 200

Q33
General ScienceChemistry
Which one of the following is not a metalloid?
  1. a.Boron
  2. b.Silicon
  3. c.Gallium
  4. d.Germanium

Answer: (C) Gallium

Gallium is a metal (it melts in the hand at about 30 °C). Boron, silicon and germanium have properties between metals and non-metals and are classed as metalloids.

Q32 Whole paperQ34
Which one of the following is not a metalloid? — WBCS Main Examination 2023 Q33 | Prostuti360°