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(a) Define the terms (i) mineral (ii) ore, and (iii) gangue. (b) What is meant by the 'concentration of ore'? (c) Name one ore of copper (other than cuprite). Which compound of copper is present in this ore? Also, write its chemical formula.

ChemistryClass 10ICSEAnswered 27 Mar 2026
Answer
  • (i) Minerals are those in which the metal or compounds that are found on
  • Ores are those minerals from which the metals can be extracted conveniently and
  • Gangue is the impurities like sand, rocky material present in the ore
  • Before extracting metal from its ore it is necessary to remove the gangue and after the removal we will get a ore which is concentrated. This is called concentration of ore also called enrichment of
  • Ore: Copper glance; Copper(I) Sulphide
Chemistry · Class 10