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JEE Main levelSingle correct optionDifficulty 2 of 3pt039

Which one of the following is NOT usually classified as a metalloid?

  1. ASi
  2. BAl
  3. CGe
  4. DSb

Answer: B

The commonly listed metalloids are B, Si, Ge, As, Sb and Te. Aluminium is a metal with amphoteric oxide and typical metallic properties.
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