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Syllabus

p-block Elements and their Compounds - II

Telangana Open School (TOSS) · Class 12 · Chemistry

Complete topic list for p-block Elements and their Compounds - II in Telangana Open School (TOSS) Class 12 Chemistry. Key concepts, sub-topics, and what to focus on for board exams.

48 questions30 flashcards5 concepts

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4 Topics · Telangana Open School (TOSS) Class 12 Chemistry

Topics in p-block Elements and their Compounds - II

1

Classification of Oxides

  • Oxides are binary compounds of oxygen with metals or non-metals.
  • They are classified based on acid-base behavior: acidic, basic, amphoteric, and neutral oxides.
  • Acidic oxides are formed by non-metals and react with bases to form salt and water.
2

Ozone and its Properties

  • Ozone (O₃) is an allotrope of oxygen with a bent/V-shaped structure.
  • It is prepared by passing oxygen through a silent electric discharge (Siemens ozonizer).
  • Ozone is a powerful oxidizing agent and unstable, decomposing to O₂.
3

Sulphuric Acid – Manufacture and Properties

  • Manufactured by Contact Process using V₂O₅ catalyst.
  • SO₂ is produced by burning sulfur or roasting pyrites.
  • SO₂ is oxidized to SO₃ at 720K and 2 atm pressure using V₂O₅.
4

Hydrogen Halides and Oxoacids of Chlorine

  • Hydrogen halides: HF, HCl, HBr, HI — acidity increases down the group: HF < HCl < HBr < HI.
  • HF has high boiling point due to hydrogen bonding.
  • HCl prepared by NaCl + H₂SO₄ or direct combination of H₂ and Cl₂.

Key Concepts

Central concept: p-Block Elements (Groups 16, 17, 18)

Oxides ClassificationOzone (O₃)Sulphuric Acid (H₂SO₄)Hydrogen Halides (HF, HCl, HBr, HI)Oxides and Oxoacids of ChlorineInterhalogen CompoundsChlorofluorocarbons (CFCs)Noble Gas Compounds

Frequently Asked Questions

What are the important topics in p-block Elements and their Compounds - II for Telangana Open School (TOSS) Class 12 Chemistry?
p-block Elements and their Compounds - II covers several key topics that are frequently asked in Telangana Open School (TOSS) Class 12 board exams. Focus on the core concepts listed on this page and practise related questions to build confidence.
How to score full marks in p-block Elements and their Compounds - II — Telangana Open School (TOSS) Class 12 Chemistry?
Understand the core concepts first, then work through the 48 practice questions available for this chapter. Revise formulas and definitions regularly, and use flashcards for quick recall before the exam.

Sources & Official References

Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.

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