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Class 10 Chemistry MCQs – Certification Test 95

Basic Metallurgical Operations MCQ (Question 95) – Learning App & e-Book Download

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MCQ: 95

Process in which some minerals are converted to the oxide by heating in the air at a temperature below their melting point is called

  1. roasting
  2. smelting
  3. Bessemerization
  4. concentration

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