Class 10 Chemistry MCQs (Grade 10) From Textbook

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Class 10 Chemistry MCQs – Certification Test 294

Basic Metallurgical Operations MCQs (Question 294) – App & e-Book Download

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MCQ: 294

The last step of metallurgy is

  1. crushing, grinding or pulverizing of the ore
  2. concentration of the ore
  3. extraction of metal
  4. refining of metal

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Basic Metallurgical Operations MCQs Apps (iOS & Android)

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