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Analytical chemistry

ICSE · Class 10 · Chemistry

Quick revision notes for Analytical chemistry — ICSE Class 10 Chemistry. Key concepts, formulas, and definitions for last-minute revision.

44 questions38 flashcards5 concepts

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Key Topics to Revise

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1. Basics of Analytical Chemistry

  • Analytical chemistry deals with qualitative and quantitative analysis.
  • Qualitative analysis determines the nature and quality of the substance under examination.
  • Quantitative analysis determines the constituents of a chemical substance or mixture.
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2. Action of Ammonium Hydroxide on Salt Solutions

  • Ammonium hydroxide is used for precipitation of metal cations as hydroxides, formation of complex salts, making the medium weakly basic, and providing ammonia.
  • Precipitation means formation of an insoluble substance when two or more solutions are mixed.
  • Some precipitated metallic hydroxides become soluble in excess ammonium hydroxide because of complex salt formation.
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3. Action of Sodium Hydroxide on Salt Solutions

  • Sodium hydroxide is mainly used for precipitation of insoluble hydroxides from metallic salt solutions.
  • Some precipitated metallic hydroxides dissolve in excess NaOH to form soluble complex salts.
  • Calcium salt solutions give dull white Ca(OH)2 precipitate with NaOH, insoluble in excess.
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4. Action of Caustic Alkalis on Metals

  • Caustic alkalis such as NaOH and KOH react with some metals and their oxides.
  • Zinc dissolves in hot and concentrated caustic alkalis to form colourless soluble zincates with hydrogen gas evolution.
  • Aluminium reacts with boiling caustic alkalis to form colourless aluminates with hydrogen gas evolution.

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Full Notes

Key Concepts

Analytical chemistry deals with the analysisQualitative analysis determines the natureQuantitative analysis deals with the determinationThe colour of a saltAmmonium hydroxide is a weak base

Frequently Asked Questions

What are the important topics in Analytical chemistry for ICSE Class 10 Chemistry?
Analytical chemistry covers several key topics that are frequently asked in ICSE Class 10 board exams. Focus on the core concepts listed on this page and practise related questions to build confidence.
How to score full marks in Analytical chemistry — ICSE Class 10 Chemistry?
Understand the core concepts first, then work through the 44 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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