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12th Standard Chemistry English Medium - p - Block Elements - I 2 Mark Creative Question Paper and Answer Key 2022 - 2023 Study Materials Sep-01 , 2022

QB365 provides a detailed and simple solution for every Possible Creative Questions in Class 12 Chemistry Subject - p - Block Elements - I, English Medium. It will help Students to get more practice questions, Students can Practice these question papers in addition to score best marks.

12th Standard Chemistry English Medium - p - Block Elements - I 2 Mark Creative Question Paper and Answer Key 2022 - 2023

p - Block Elements - I 2 Mark Creative Question Paper With Answer Key

12th Standard

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Chemistry

Time : 00:45:00 Hrs
Total Marks : 30

    2 Marks 

    15 x 2 = 30

  1. Write a short note on anamolous properties of the first element of p-block.

  2. Boron does not react directly with hydrogen. Suggest one method to prepare diborane from BF3.

  3. How is boric acid extracted from borax?

  4. Explain the formation of boron trifluoride.

  5. Draw the structure of borazole B3N3H6.

  6. Mention the physical properties of boranes.

  7. Write the reaction of diboranes with water and alkali.

  8. What are the uses of boron trifluoride?

  9. What are alums?

  10. What is burnt alum?

  11. Give the uses of alum.

  12. What is phosgene? How is it prepared?

  13. What is oxo process?

  14. What is water gas equilibrium?

  15. What happens to CO2 when dissolved in water?

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