Chemistry – Important Question Bank for Karnataka Intermediate II PUC (HSC) Board Exam 2019

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After the tremendous success of our last year Important Question Bank for Karnataka 12th std  PUC HSC Board Exam 2016 2017 and 2018 we have also created a list of Important Question Bank for Karnataka Intermediate II PUC (HSC) Board Exam 2019 which are likely to appear in HSC Board Exams this year.


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  1. How does electron gas theory explain the malleability and ductility of metals?
  2. D-block elements form co-ordination compounds. Give reasons.
  3. Many transition metals and their compounds are used as catalysts in several chemical reactions. Why?
  4. Explain the extraction of aluminum from purified alumina by Hall-Heroult process.
  5. Give any two differences between mesomeric and inductive effects
  6. Write the reactions that takes place during the manufacture of nitric acid by Ostwald’s process.
  7. Explain Reimer-Thiemann reaction with an example
  8. How is pure alumina obtained from Bauxite by leaching process?
  9. Zinc liberates hydrogen gas from dilute sulphuric acid but copper does not. Why?
  10. State Henry’s law and mention application of it.
  11. Write the monomers used for getting the following polymers.
  12. Mention the differences between hyophillic and hypophobic solutions.
  13. How do you show that ammonia acts both as a Lewis base and as a Bronsted base?
  14. What is reverse Osmosis? Mention two applications of it.
  15. Mention any three limitations of standard hydrogen electrode.
  16. Derive an integrated rate equation for the rate constant of a 1st order reaction.
  17. Calculate the packing efficiency of simple cubic crystal.
  18. Differentiate between mesomeric and inductive effects.
  19. Explain how is Hinberg’s reagent is used to distinguish the primary, secondary and tertiary amines
  20. Describe Ostwald-Walker method of measuring the relative lowering of vapor pressure.
  21. Write the Haworth’s structure for lactose.
  22. State Raoult’s law of relative lowering of vapor pressure. Give the mathematical form of it.
  23. Write the chemical reactions involved in the conversion of aniline into phenol
  24. Explain the mechanism of acid catalysed dehydration of ethanol to ethane.
  25. Explain the construction and working of standard hydrogen electrode. Give on limitation of it.
  26. Describe the construction and working of SHE.
  27. State the postulates of Werner’s theory of coordination compounds.

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