SSC CGL 2021 PYQ — Question 26

SSC CGL - 24 Aug 2021 - Shift 2 • General Awareness • Q26

Which of the following is the common name of a natural admixture mineral of zinc carbonate and hydrous zinc silicate?

Show answer & explanation

Correct answer: A

Explanation

The correct answer is option 1 i.e. Calamine

  • Calamine is a name for an ore of zinc.
  • During the early 19th century it was discovered that ore was actually admixture of two distinct minerals: Zinc carbonate ZnCO3 or smithsonite and Zinc silicate Zn4Si2O7(OH)2·H2O or hemimorphite.
  • In medi-science calamine, also known as calamine lotion, is a medication used to treat mild itchiness.