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Chemistry - General Principles and Processes of Isolation of Metals

Practise 36 KCET previous year questions on General Principles and Processes of Isolation of Metals, compiled from papers spanning 2007 to 2024. Each question is pulled directly from the actual exam paper it appeared in, so you're practising in the exact style and difficulty KCET tests.

General Principles and Processes of Isolation of Metals has been asked in 16 of the 20 years of KCET papers analysed (2007–2026), with 36 questions in all. 56% of them were easy, 36% moderate and 8% tough. Most of its questions came from 2011, with 4 questions that year. In the last three years (2024–2026) it had 2 questions across 3 papers, about 0.7 per paper.

The chapter's 5 topics are not weighted equally: Concentration of the Ore (10 questions, 28%), Extraction of Metals (10 questions, 28%), and Minerals and ores (7 questions, 19%) have been asked the most. Concentration of the Ore has also led over the last five years, with 1 question. Extraction of Metals has produced the most tough questions (2).

  1. 1The incorrect statement about Hall -Heroult process is2024Extraction of Metals
  2. 2Select the correct statement :2024Concentration of the Ore
  3. 3For the formation of which compound in Ellingham diagram becomes more and more negative with increase in temperature?2023Reduction to Crude Metal
  4. 4Copper is extracted from copper pyrites by2020Reduction to Crude Metal
  5. 5Function of potassium ethyl xanthate in froth floatation process is to make the ore2020Concentration of the Ore
  6. 6Sulphide ore on roasting gives a gas reacts with in the presence of activated charcoal to give . is2020Minerals and ores
  7. 7Among the following, the main reactions occurring in blast furnace during extraction of iron from haematite are: i. ii. iii. iv.2019Extraction of Metals
  8. 8Oxidation state of copper is \( +1 \) in2019Minerals and ores
  9. 9Electrolytic refining is used to purify which of the following metals?2018Refining of Crude Metal
  10. 10The common impurity present in bauxite is2018Minerals and ores
  11. 11Pick the correct statement among the following :2017Concentration of the Ore
  12. 12Van-Arkel method of refining Zirconium involves,2016Refining of Crude Metal
  13. 13The composition of 'copper matte' is,2016Extraction of Metals
  14. 14The complex formed when \( {Al}_{2} {O}_{3} \) is leached from Bauxite using concentrated \( {NaOH} \) solution is,2016Extraction of Metals
  15. 15Copper is extracted from Copper pyrites by heating in a Bessemer converter. The method is based on the principle that2015Refining of Crude Metal
  16. 16Preview not available - open to view this question.2015Extraction of Metals
  17. 17Cryolite is2015Extraction of Metals
  18. 18The acid strength of active methylene group in (a) \( {CH}_{3} {COCH}_{2} {COOC}_{2} {H}_{5} \) (b) \( {CH}_{3} {COCH}_{2} {COCH}_{3} \) (c)2014Concentration of the Ore
  19. 19Which one of these is not known ?2014Extraction of Metals
  20. 20When limestone is heated, is given off. The metallurgical operation is2013Concentration of the Ore
  21. 21The process of zone refining is used in the purification of2013Refining of Crude Metal
  22. 22The function of potassium ethyl xanthate in froth floatation process is to make the ore2012Concentration of the Ore
  23. 23From the Ellingham graphs on carbon, which of the following statements is false?2012Concentration of the Ore
  24. 24The ore that is concentrated by the froth floatation process is2012Concentration of the Ore
  25. 25Which one of the following statements is false?2011Extraction of Metals
  26. 26In chromite ore, the oxidation number of iron and chromium are respectively2011Minerals and ores
  27. 27Carbon cannot reduce to at a temperature below because2011Reduction to Crude Metal
  28. 28Which one of the following is true?2011Minerals and ores
  29. 29In the electrolytic refining of zinc2010Reduction to Crude Metal
  30. 30In chromite ore, the oxidation number of iron, and chromium are respectively2010Minerals and ores
  31. 31Carbon can reduce ferric oxide to iron at a temperature above because2010Extraction of Metals
  32. 32The ore that is concentrated by froth floatation process is2009Concentration of the Ore
  33. 33The temperature of the slag zone in the metallurgy of iron using blast furnace is2009Refining of Crude Metal
  34. 34Identify the reaction that does not take place in a blast furnace.2008Extraction of Metals
  35. 35During the extraction of gold the following reactions take place and are respectively2007Concentration of the Ore
  36. 36Identify the ore not cotaining iron.2007Minerals and ores

Frequently Asked Questions

1.How many questions are available for General Principles and Processes of Isolation of Metals?

This chapter includes 36 questions compiled from KCET papers spanning 2007 to 2024.

2.Are these questions only from KCET, or from other exams too?

These are KCET questions specifically for the General Principles and Processes of Isolation of Metals chapter. Questions from other exams like JEE Main or NTA Abhyas (JEE Main) are organised separately under their respective exam sections.

3.Is General Principles and Processes of Isolation of Metals an important chapter for KCET Chemistry?

General Principles and Processes of Isolation of Metals has appeared in 16 of the 20 years of KCET papers covered here, with 36 questions across 16 papers - about 2 per paper it appears in.

4.What is the difficulty level of General Principles and Processes of Isolation of Metals questions in KCET?

Of the 36 questions analysed for this chapter, 56% are easy, 36% moderate and 8% tough. 2011 had the most, with 4 questions.

5.Which topics in General Principles and Processes of Isolation of Metals should I focus on?

These topics have carried the most weightage in General Principles and Processes of Isolation of Metals:

  • Concentration of the Ore - 10 questions (28%)
  • Extraction of Metals - 10 questions (28%)
  • Minerals and ores - 7 questions (19%)
  • Extraction of Metals has produced the most tough questions (2).
6.Is General Principles and Processes of Isolation of Metals's weightage in KCET going up or down?

Across all 16 papers analysed, General Principles and Processes of Isolation of Metals has averaged about 2.3 questions per paper. In the last three years (2024–2026), that average has fallen, at about 0.7 questions per paper. Use the year-wise numbers on this page for the exact trend before you decide how much time to give it.