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Practical Work — Study Plan

ICSE · Class 9 · Chemistry

A step-by-step study plan for Practical Work, ICSE Class 9 Chemistry: what to learn first, what to practise and when to revise.

43 questions36 flashcards12 formulas & key relations5 concepts

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A diagram illustrating the laboratory test for hydrogen gas, showing a burning splint producing a 'pop' sound when brought near the gas.
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One of 20 illustrations for Practical Work in Super Tutor — alongside flashcards, concept maps and practice questions.

Study Plan

1
Day 1–2

Learn the Theory

Read the textbook chapter carefully. Note down definitions, formulas and key ideas. Focus on: 1. Recognition and Identification of Gases.

2
Day 3

Practise

Solve the textbook exercises and extra practice questions. There are 43 questions available for this chapter.

3
Day 4

Revise & Test

Revise key points without looking at your notes. Take a practice quiz and mark weak areas for another pass.

4
Day 7

Spaced Revision

Come back to Practical Work after a week. Use flashcards for quick recall and try past exam questions on this chapter.

What to Focus On

  • Hydrogen, oxygen, and water vapour are neutral in nature.
  • Carbon dioxide, chlorine, hydrogen chloride, sulphur dioxide, hydrogen sulphide, and nitrogen dioxide are acidic gases.
  • Ammonia is the only basic gas in the list.
  • Heating can remove water of crystallization.
  • Some salts decompose to give gases such as carbon dioxide, oxygen, nitrogen dioxide, or sulphur dioxide.
  • Lead oxide is brown when hot and yellow when cold.
  • Reactive metals give hydrogen gas with dilute acid.
  • Carbonates and bicarbonates give carbon dioxide.
  • Sulphides give hydrogen sulphide.

Common Mistakes to Avoid

Any acidic gas that turns lime water milky must be carbon dioxide.

Chlorine and hydrogen chloride can be identified only by silver nitrate because both give a white precipitate.

Sulphur dioxide and hydrogen sulphide are the same because both have a bad smell and come from sulphur compounds.

Memory Tips

Hydrogen gas identification

Oxygen gas identification

Carbon dioxide identification

Chlorine identification

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Frequently Asked Questions

What are the important topics in Practical Work for ICSE Class 9 Chemistry?
Key topics in Practical Work include Hydrogen is colourless, Heating causes different substances to change, Reactive metals give hydrogen gas, Sodium salts give a golden yellow. Study these first, then practise questions on each for Class 9 exams.
How should I revise Practical Work for Class 9 exams?
Learn the core ideas first, then work through the 43 practice questions on Practical Work. Revise 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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