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Updated 12th Standard Chemistry Study Materials 2022-2023 Exams

12th Standard Chemistry English Medium - p - Block Elements - I 3 Mark Book Back Question Paper and Answer Key 2022 - 2023 Study Materials Sep-01 , 2022

QB365 provides a detailed and simple solution for every Possible Book Back 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 3 Mark Book Back Question Paper and Answer Key 2022 - 2023

p - Block Elements - I 3 Mark Book Back Question Paper With Answer Key

12th Standard

    Reg.No. :
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Chemistry

Time : 00:45:00 Hrs
Total Marks : 21

    3 Marks

    7 x 3 = 21

  1. Give the uses of Borax

  2. Give the uses of silicones.

  3. Write a note on metallic nature of p-block elements.

  4. How will you convert boric acid to boron nitride?

  5. A hydride of 2nd period alkali metal (A) on reaction with compound of Boron (B) to give a reducing agent (C). Identify A, B and C.

  6. A double salt which contains fourth period alkali metal (A) on heating at 500K gives (B). Aqueous solution of (B) gives white precipitate with BaCl2 and gives a red colour compound with alizarin. Identify A and B.

  7. What are the factors responsible for the anomalous behaviour of first element the p-block.

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